To avoid bodily injury or damage to the server or its components, make sure you are familiar with the safety signs on the server chassis or its components.

Table 1 Safety signs

Sign	Description
	Circuit or electricity hazards are present. Only H3C authorized or professional server engineers are allowed to service, repair, or upgrade the server. WARNING! To avoid bodily injury or damage to circuits, do not open any components marked with the electrical hazard sign unless you have authorization to do so.
	Electrical hazards are present. Field servicing or repair is not allowed. WARNING! To avoid bodily injury, do not open any components with the field-servicing forbidden sign in any circumstances.
	The RJ-45 ports on the server can be used only for Ethernet connections. WARNING! To avoid electrical shocks, fire, or damage to the equipment, do not connect an RJ-45 port to a telephone.
	The surface or component might be hot and present burn hazards. WARNING! To avoid being burnt, allow hot surfaces or components to cool before touching them.
	The server or component is heavy and requires more than one people to carry or move. WARNING! To avoid bodily injury or damage to hardware, do not move a heavy component alone. In addition, observe local occupational health and safety requirements and guidelines for manual material handling.
	The server is powered by multiple power supplies. WARNING! To avoid bodily injury from electrical shocks, make sure you disconnect all power supplies if you are performing offline servicing.

Power source recommendations

Power instability or outage might cause data loss, service disruption, or damage to the server in the worst case.

To protect the server from unstable power or power outage, use uninterrupted power supplies (UPSs) to provide power for the server.

Installation safety recommendations

To avoid bodily injury or damage to the server, read the following information carefully before you operate the server.

General operating safety

To avoid bodily injury or damage to the server, follow these guidelines when you operate the server:

· Only H3C authorized or professional server engineers are allowed to install, service, repair, operate, or upgrade the server.

· Place the server on a clean, stable table or floor for servicing.

· Make sure all cables are correctly connected before you power on the server.

· To avoid being burnt, allow the server and its internal modules to cool before touching them.

If you put the server in standby mode (system power LED in amber) with the power on/standby button on the front panel, the power supplies continue to supply power to some circuits in the server. To remove all power for servicing safety, you must first press the button, wait for the system to enter standby mode, and then remove the power cords from the server.

To avoid bodily injury or damage to the server, follow these guidelines:

· Always use the power cords that came with the server.

· Do not use the power cords that came with the server for any other devices.

· Power off the server when installing or removing any components that are not hot swappable.

Rack mounting recommendations

To avoid bodily injury or damage to the equipment, follow these guidelines when you rack mount a server:

· Mount the server in a standard 19-inch rack.

· Make sure the leveling jacks are extended to the floor and the full weight of the rack rests on the leveling jacks.

· Couple the racks together in multi-rack installations.

· Load the rack from the bottom to the top, with the heaviest hardware unit at the bottom of the rack.

· Get help to lift and stabilize the server during installation or removal, especially when the server is not fastened to the rails. As a best practice, a minimum of two people are required to safely load or unload a rack. A third person might be required to help align the server if the server is installed higher than check level.

· For rack stability, make sure only one unit is extended at a time. A rack might get unstable if more than one server unit is extended.

· Make sure the rack is stable when you operate a server in the rack.

· To maintain correct airflow and avoid thermal damage to the server, use blank panels to fill empty rack units.

ESD prevention

Electrostatic charges that build up on people and tools might damage or shorten the lifespan of the system board and electrostatic-sensitive components.

Preventing electrostatic discharge

To prevent electrostatic damage, follow these guidelines:

· Transport or store the server with the components in antistatic bags.

· Keep the electrostatic-sensitive components in separate antistatic bags until they arrive at an ESD-protected area.

· Place the components on a grounded surface before removing them from their antistatic bags.

· Avoid touching pins, leads, or circuitry.

Grounding methods to prevent electrostatic discharge

The following are grounding methods that you can use to prevent electrostatic discharge:

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Take adequate personal grounding measures, including wearing antistatic clothing and static dissipative shoes.

· Use conductive field service tools.

· Use a portable field service kit with a folding static-dissipating work mat.

Cooling performance

Poor cooling performance might result from improper airflow and poor ventilation and might cause damage to the server.

To ensure good ventilation and proper airflow, follow these guidelines:

· Install blanks if the following module slots are empty:

¡ Drive bays.

¡ Fan bays.

¡ PCIe slots.

¡ Power supply slots.

· Do not block the ventilation openings in the server chassis.

· To avoid thermal damage to the server, do not operate the server for long periods in any of the following conditions:

¡ Access panel open or uninstalled.

¡ Air baffles uninstalled.

¡ PCIe slots, drive bays, fan bays, or power supply slots empty.

Battery safety

The server's system board contains a system battery, which is designed with a lifespan of 3 to 5 years.

If the server no longer automatically displays the correct date and time, you might need to replace the battery. When you replace the battery, follow these safety guidelines:

· Do not attempt to recharge the battery.

· Do not expose the battery to a temperature higher than 60°C (140°F).

· Do not disassemble, crush, puncture, short external contacts, or dispose of the battery in fire or water.

· Dispose of the battery at a designated facility. Do not throw the battery away together with other wastes.

Preparing for installation

Prepare a rack that meets the rack requirements and plan an installation site that meets the requirements for space and airflow, temperature, humidity, equipment room height, cleanliness, and grounding.

Rack requirements

IMPORTANT:

To avoid affecting the server chassis, install power distribution units (PDUs) with the outputs facing backwards. If you install PDUs with the outputs facing the inside of the server, perform onsite survey to make sure the cables won't affect the server rear.

The server is 4U high and has a depth of 829.4 mm (32.65 in). The rack for installing the server must meet the following requirements:

· A standard 19-inch rack.

· A clearance of more than 50 mm (1.97 in) between the rack front posts and the front rack door.

· A minimum of 1200 mm (47.24 in) in depth as a best practice. For installation limits for different rack depth, see Table 2.

Table 2 Installation limits for different rack depths

Rack depth	Installation limits
1000 mm (39.37 in)	· The H3C cable management arm (CMA) is not supported. · A clearance of 60 mm (2.36 in) is reserved from the server rear to the rear rack door for cabling. · The slide rails and PDUs might hinder each other. Perform onsite survey to determine the PDU installation location and the proper PDUs. If the PDUs hinder the installation and movement of the slide rails anyway, use other methods to support the server, a tray for example.
1100 mm (43.31 in)	Make sure the CMA does not hinder PDU installation at the server rear before installing the CMA. If the CMA hinders PDU installation, use a deeper rack or change the installation locations of PDUs.
1200 mm (47.24 in)	Make sure the CMA does not hinder PDU installation or cabling. If the CMA hinders PDU installation or cabling, change the installation locations of PDUs. For detailed installation suggestions, see Figure 1.

Figure 1 Installation suggestions for a 1200 mm deep rack (top view)

(1) 1200 mm (47.24 in) rack depth
(2) A minimum of 50 mm (1.97 in) between the front rack posts and the front rack door
(3) 780 mm (30.71 in) between the front rack posts and the rear of the chassis, including power supply handles at the server rear (not shown in the figure)
(4) 852.1 mm (33.55 in) server depth, including chassis ears
(5) 960 mm (37.80 in) between the front rack posts and the CMA
(6) 860 mm (33.86 in) between the front rack posts and the rear ends of the slide rails

Installation site requirements

Airflow direction of the server

Figure 2 Airflow direction of the server

(1) Directions of the airflow into the chassis and power supplies
(2) and (3) Direction of the airflow out of the chassis and power supplies

Temperature and humidity requirements

To ensure correct operation of the server, make sure the room temperature and humidity meet the requirements as described in "Appendix A Server specifications."

Equipment room height requirements

To ensure correct operation of the server, make sure the equipment room height meets the requirements as described in "Appendix A Server specifications."

Cleanliness requirements

Mechanically active substances buildup on the chassis might result in electrostatic adsorption, which causes poor contact of metal components and contact points. In the worst case, electrostatic adsorption can cause communication failure.

Table 3 Mechanically active substance concentration limit in the equipment room

Substance	Particle diameter	Concentration limit
Dust particles	≥ 5 µm	≤ 3 x 10⁴ particles/m³ (No visible dust on desk in three days)
Dust (suspension)	≤ 75 µm	≤ 0.2 mg/m³
Dust (sedimentation)	75 µm to 150 µm	≤ 1.5 mg/(m²h)
Sand	≥ 150 µm	≤ 30 mg/m³

The equipment room must also meet limits on salts, acids, and sulfides to eliminate corrosion and premature aging of components, as shown in Table 4.

Table 4 Harmful gas limits in an equipment room

Gas	Maximum concentration (mg/m³)
SO₂	0.2
H₂S	0.006
NO₂	0.04
NH₃	0.05
Cl₂	0.01

Grounding requirements

Correctly connecting the server grounding cable is crucial to lightning protection, anti-interference, and ESD prevention. The server can be grounded through the grounding wire of the power supply system and no external grounding cable is required.

Storage requirements

Follow these guidelines to store storage media:

· As a best practice, do not store an HDD for 6 months or more without powering on and using it.

· As a best practice, do not store an SSD, M.2 SSD, or SD card for 3 months or more without powering on and using it. Long unused time increases data loss risks.

· To store the server chassis, or an HDD, SSD, M.2 SSD, or SD card for 3 months or more, power on it every 3 months and run it for a minimum of 2 hours each time. For information about powering on and powering off the server, see "Powering on and powering off the server."

Installation tools

Table 5 lists the tools that you might use during installation.

Table 5 Installation tools

Picture	Name	Description
	T25 Torx screwdriver	Installs or removes screws inside chassis ears, including screw rack mount ears or multifunctional rack mount ears.
	T30 Torx screwdriver	Installs or removes captive screws on processor heatsinks.
	T15 Torx screwdriver (shipped with the server)	Installs or removes screws on the system board.
	T10 Torx screwdriver (shipped with the server)	Installs or removes screws on riser cards.
	Flat-head screwdriver	Installs or removes captive screws inside multifunctional rack mount ears or replaces system batteries.
	Phillips screwdriver	Installs or removes screws on drive carriers.
	Cage nut insertion/extraction tool	Inserts or extracts the cage nuts in rack posts.
	Diagonal pliers	Clips insulating sleeves.
	Tape measure	Measures distance.
	Multimeter	Measures resistance and voltage.
	ESD wrist strap	Prevents ESD when you operate the server.
	Antistatic gloves	Prevents ESD when you operate the server.
	Antistatic clothing	Prevents ESD when you operate the server.
	Ladder	Supports high-place operations.
	Interface cable (such as an Ethernet cable or optical fiber)	Connects the server to an external network.
	Serial console cable	Connects the serial connector on the server to a monitor for troubleshooting.
	Monitor	Displays the output from the server.
	Temperature humidity meter	Displays current temperature and humidity.
	Oscilloscope	Displays the variation of voltage over time in waveforms.

Installing or removing the server

Installing the server

Installing rails

Install the inner rails to the server and the outer rails to the rack. For information about installing the rails, see the document shipped with the rails.

Rack-mounting the server

1. Slide the server into the rack. For more information about how to slide the server into the rack, see the document shipped with the rails.

Figure 3 Rack-mounting the server

2. Secure the server.

a. Push the server until the multifunctional rack mount ears are flush against the rack front posts, as shown by callout 1 in Figure 4.

b. Unlock the latches of the multifunctional rack mount ears, as shown by callout 2 in Figure 4.

c. Fasten the captive screws inside the chassis ears and lock the latches, as shown by callout 3 in Figure 4.

Figure 4 Securing the server

Installing cable management brackets

Install cable management brackets if the server is shipped with cable management brackets. For information about how to install cable management brackets, see the installation guide shipped with the brackets.

Connecting external cables

Cabling guidelines

WARNING!

To avoid electric shock, fire, or damage to the equipment, do not connect communication equipment to RJ-45 Ethernet ports on the server.

· For heat dissipation, make sure no cables block the inlet or outlet air vents of the server.

· To easily identify ports and connect/disconnect cables, make sure the cables do not cross.

· Label the cables for easy identification of the cables.

· Wrap unused cables onto an appropriate position on the rack.

· To avoid damage to cables when extending the server out of the rack, do not route the cables too tight if you use cable management brackets.

Connecting a mouse, keyboard, and monitor

About this task

Perform this task before you configure BIOS, HDM, UniSystem, or RAID on the server or enter the operating system of the server.

The embedded VGA chip on the server provides two DB15 VGA connectors for connecting a monitor. One is on the front panel and the other is on the rear panel.

The server is not shipped with a standard PS2 mouse and keyboard. To connect a PS2 mouse and keyboard, you must prepare a USB-to-PS2 adapter.

Procedure

1. Connect one plug of a VGA cable to a VGA connector on the server, and fasten the screws on the plug.

Figure 5 Connecting a VGA cable

2. Connect the other plug of the VGA cable to the VGA connector on the monitor, and fasten the screws on the plug.

3. Connect the mouse and keyboard.

¡ For a USB mouse and keyboard, directly connect the USB connectors of the mouse and keyboard to the USB connectors on the server.

¡ For a PS2 mouse and keyboard, insert the USB connector of the USB-to-PS2 adapter to a USB connector on the server. Then, insert the PS2 connectors of the mouse and keyboard into the PS2 receptacles of the adapter.

Figure 6 Connecting a PS2 mouse and keyboard by using a USB-to-PS2 adapter

Connecting an Ethernet cable

About this task

Perform this task before you set up a network environment or log in to the HDM management interface through the HDM network port to manage the server.

Procedure

1. Determine the network port on the server.

¡ To connect the server to the external network, use the Ethernet port on the network adapter.

¡ To log in to the HDM management interface, use the HDM dedicated network port. For the position of the HDM dedicated network port, see "Rear panel."

If the server is configured with an OCP network adapter, you can also use the HDM shared network port on the OCP network adapter to log in to the HDM management interface. For the position of the OCP network adapter, see "Rear panel."

2. Determine type of the Ethernet cable.

Verify the connectivity of the cable by using a link tester.

If you are replacing the Ethernet cable, make sure the new cable is the same type or compatible with the old cable.

3. Label the Ethernet cable by filling in the names and numbers of the server and the peer device on the label.

As a best practice, use labels of the same kind for all cables.

If you are replacing the Ethernet cable, label the new cable with the same number as the number of the old cable.

4. Connect one end of the Ethernet cable to the network port on the server and the other end to the peer device.

Figure 7 Connecting an Ethernet cable

5. Verify network connectivity.

After powering on the server, use the ping command to test the network connectivity. If the connection between the server and the peer device fails, verify that the Ethernet cable is securely connected.

6. Secure the Ethernet cable. For information about how to secure cables, see "Securing cables."

Connecting the power cord

Guidelines

WARNING!

To avoid damage to the equipment or even bodily injury, use the power cord that ships with the server.

Before connecting the power cord, make sure the server and components are installed correctly.

Procedure

1. Insert the power cord plug into the power receptacle of a power supply at the rear panel, as shown in Figure 8.

NOTE:

Various forms of power cable fastening methods are available. This section uses a cable clamp as an example.

Figure 8 Connecting the power cord

2. Connect the other end of the power cord to the power source, for example, the power strip on the rack.

3. Secure the power cord to avoid unexpected disconnection of the power cord.

a. If the cable clamp is positioned too near the power cord that it blocks the power cord plug connection, press down the tab on the cable mount and slide the clip backward.

Figure 9 Sliding the cable clamp backward

b. Open the cable clamp, place the power cord through the opening in the cable clamp, and then close the cable clamp, as shown by callouts 1, 2, 3, and 4 in Figure 10.

Figure 10 Securing the AC power cord

c. Slide the cable clamp forward until it is flush against the edge of the power cord plug, as shown in Figure 11.

Figure 11 Sliding the cable clamp forward

Securing cables

Securing cables to cable management brackets

For information about how to secure cables to cable management brackets, see the installation guide shipped with the brackets.

Securing cables to slide rails by using cable straps

You can secure cables to either left slide rails or right slide rails. As a best practice for cable management, secure cables to left slide rails.

When multiple cable straps are used in the same rack, stagger the strap location, so that the straps are adjacent to each other when viewed from top to bottom. This positioning will enable the slide rails to slide easily in and out of the rack.

To secure cables to slide rails by using cable straps:

1. Hold the cables against a slide rail.

2. Wrap the strap around the slide rail and loop the end of the cable strap through the buckle.

3. Dress the cable strap to ensure that the extra length and buckle part of the strap are facing outside of the slide rail.

Figure 12 Securing cables to a slide rail

Removing the server from a rack

1. Power down the server. For more information, see "Powering off the server."

2. Disconnect all peripheral cables from the server.

3. Extend the server from the rack.

a. Open the latches of the multifunctional rack mount ears, as shown by callout 1 in Figure 13.

b. Loosen the captive screws inside the multifunctional rack mount ears, as shown by callout 2 in Figure 13.

c. Slide the server out of the rack, as shown by callout 3 in Figure 13.

Figure 13 Extending the server from the rack

4. Place the server on a clean, stable surface.

Powering on and powering off the server

Important information

If the server is connected to external storage devices, make sure the server is the first device to power off and then the last device to power on. This restriction prevents the server from mistakenly identifying the external storage devices as faulty devices.

Powering on the server

Prerequisites

Before you power on the server, you must complete the following tasks:

· Install the server and internal components correctly.

· Connect the server to a power source.

Procedure

Powering on the server by pressing the power on/standby button

Press the power on/standby button to power on the server.

The server exits standby mode and supplies power to the system. The system power LED changes from steady amber to flashing green and then to steady green. For information about the position of the system power LED, see "LEDs and buttons."

Powering on the server from the HDM Web interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Power on the server.

a. Select System > Power Management.

b. Click Power on.

For more information, see HDM online help.

Powering on the server from the remote console interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Log in to a remote console and then power on the server.

For information, see HDM online help.

Configuring automatic power-on

You can configure automatic power-on from HDM or the BIOS.

To configure automatic power-on from HDM:

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Configure automatic power-on for the server.

a. Select System > Power Management > Power Supply Info, and then click System Power Restore.

b. Select Always power on, and then click OK.

For more information, see HDM online help.

To configure automatic power-on from the BIOS:

3. Log in to the BIOS.

For information about how to log in to the BIOS, see the BIOS user guide for the server.

2. Configure automatic power-on for the server.

a. Select Server > AC Restore Settings, and then press Enter.

b. Select Always Power On, and then press Enter.

c. Press F4 to save the configuration.

For more information, see the BIOS user guide for the server.

Powering off the server

Guidelines

Before powering off the server, you must complete the following tasks:

· Back up all critical data.

· Make sure all services have stopped or have been migrated to other servers.

Procedure

Powering off the server from its operating system

1. Connect a monitor, mouse, and keyboard to the server.

2. Shut down the operating system of the server.

3. Disconnect all power cords from the server.

Powering off the server by pressing the power on/standby button

1. Press the power on/standby button and wait for the system power LED to turn into steady amber.

2. Disconnect all power cords from the server.

Powering off the server forcedly by pressing the power on/standby button

IMPORTANT:

This method forces the server to enter standby mode without properly exiting applications and the operating system. Use this method only when the server system crashes. For example, a process gets stuck.

1. Press and hold the power on/standby button until the system power LED turns into steady amber.

2. Disconnect all power cords from the server.

Powering off the server from the HDM Web interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Power off the server.

For more information, see HDM online help.

3. Disconnect all power cords from the server.

Powering off the server from the remote console interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Log in to a remote console and then power off the server.

For information about how to log in to a remote console, see HDM online help.

3. Disconnect all power cords from the server.

Configuring the server

The following information describes the procedures to configure the server after the server installation is complete.

Configuration flowchart

Figure 14 Configuration flowchart

Powering on the server

1. Power on the server. For information about the procedures, see "Powering on the server."

2. Verify that the health LED on the front panel is steady green, which indicates that the system is operating correctly. For more information about the health LED status, see "LEDs and buttons."

Configuring basic BIOS settings

You can set the server boot order and the BIOS passwords from the BIOS setup utility of the server.

NOTE:

The BIOS setup utility screens are subject to change without notice.

Setting the server boot order

The server has a default boot order. You can change the server boot order from the BIOS. For the default boot order and the procedure of changing the server boot order, see the BIOS user guide for the server.

Setting the BIOS passwords

BIOS passwords include a boot password as well as an administrator password and a user password for the BIOS setup utility. By default, no passwords are set.

To prevent unauthorized access and changes to the BIOS settings, set both the administrator and user passwords for accessing the BIOS setup utility. Make sure the two passwords are different.

After setting the administrator password and user password for the BIOS setup utility, you must enter the administrator password or user password each time you access the BIOS setup utility.

· To obtain administrator privileges, enter the administrator password.

· To obtain the user privileges, enter the user password.

For the difference between the administrator and user privileges and guidelines for setting the boot password, administrator password, and user password, see the BIOS user guide for the server.

Configuring RAID

Configure physical and logical drives (RAID arrays) for the server.

The supported RAID levels and RAID configuration methods vary by storage controller model. For more information, see the storage controller user guide for the server.

Installing the operating system and hardware drivers

Installing the operating system

Install a compatible operating system on the server by following the procedures described in the operating system installation guide for the server.

For the server compatibility with the operating systems, visit the query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

Installing hardware drivers

IMPORTANT:

To avoid hardware unavailability caused by an update failure, always back up the drivers before you update them.

For newly installed hardware to operate correctly, the operating system must have the required hardware drivers.

To install a hardware driver, see the operating system installation guide for the server.

Updating firmware

IMPORTANT:

Verify the hardware and software compatibility before firmware upgrade. For information about the hardware and software compatibility, see the software release notes.

You can update the following firmware from UniSystem or HDM:

· HDM.

· BIOS.

· CPLD.

· DBCPLD.

· BPCPLD.

· PSU.

· LCD.

· PFRCPLD.

· OCPCPLD.

For information about the update procedures, see the firmware update guide for the server.

Replacing hardware options

If you are replacing multiple hardware options, read their replacement procedures and identify similar steps to streamline the entire replacement procedure.

Installation guidelines

Processors

Processor installation guidelines

· You can install two or four processors. If you install only two processors, make sure processors 1 and 2 are present.

· To avoid damage to a processor or the system board, only H3C authorized or professional server engineers can install, replace, or remove a processor.

· Make sure the processors on the server are the same model.

· The pins in the processor sockets are very fragile and prone to damage. Install a protective cover if a processor socket is empty.

· For the server to operate correctly, make sure processor 1 is in position. For more information about processor locations, see system board components in "Appendix A Server specifications."

· To prevent ESD, wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· To avoid injury caused by high temperature from the processor heatsink or processor liquid-cooled module during the removal, take necessary heat protection measures before any operation.

Processor model suffixes

If the model of a processor is UN-CPU-INTEL-8490H, the model suffix is H. For more information about the supported processor models, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66.

Table 6 displays the meanings of processor model suffixes for the Intel Eagle Stream processors.

Table 6 Processor model suffix description

Processor model suffix	Description	Remarks
P	Cloud – IaaS	IaaS scenario-based optimization for VM applications requiring high base frequency.
V	Cloud – SaaS	SaaS scenario-based optimization for high-density and low-power consumption VM applications.
M	Media Transcode	Media processing scenario-based optimization.
H	DB and Analytics	Database and analysis-based optimization.
N	Network/5G/Edge(High TPT/Low Latency)	Supports network/5G/Edge (high TPT/low latency) services.
S	Storage & HCI	Supports storage and hyper fusion architecture.
T	Long-life Use/High Tcase	Supports operation with a long life cycle/under a high temperature.
U	1-Socket	Supports only single-processor operation.
Q	Liquid cooling	Dedicated for liquid-cooled servers.
This table is for reference only. For detailed information, see the Inter official website.

DIMMs

The server supports DDR5 DIMMs.

DDR5 DIMMs can perform parity check on addresses and the DDR5 DIMMs cannot protect data from getting lost in case of unexpected system power outage.

Restrictions and guidelines

You can install only two or four processors on the server. The server provides eight DIMM channels per processor and each channel has two DIMM slots. If the server has two processors, the total number of DIMM slots is 32. If the server has four processors, the total number of DIMM slots is 64.

When you install a DIMM, use Table 8 to verify that it is compatible with the processors.

Table 7 DIMM and processor compatibility

Processor	Memory type @ frequency	Max memory size per processor
Sapphire Rapids	DDR5 @4800MHz	6 TB

DIMM and processor compatibility

To obtain the memory frequency and maximum memory frequency supported by a specific processor, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66. You can query the memory frequency by selecting Memory Module and query the maximum supported memory frequency by selecting Processor.

The actual operating memory frequency is equal to the lesser of the memory frequency or the maximum memory frequency supported by the processors. For example, if the memory frequency is 4400 MHz and the maximum memory frequency supported by processors is 4800 MHz, the actual operating memory frequency is 4400 MHz.

The number of DIMMs per channel (1DPC or 2DPC) can affect the operating DIMM frequency. For more information, see Table 9.

Table 8 Operating DIMM frequency with different DPC configuration

CPU type	DDR5 DIMM frequency	DPC configuration	Operating DIMM frequency
Sapphire Rapids	4800MHz	1 DPC	4800 MHz
Sapphire Rapids	4800MHz	2 DPC	4400 MHz

Installation guidelines of installing only DDR5 DIMMs

When you install only DDR5 DIMMs, follow these restrictions and guidelines:

· Make sure their corresponding processors are present before powering on the server.

· As a best practice, install DDR5 DIMMs that have the same product code and DIMM specification (type, capacity, rank, and frequency). For information about DIMM product codes, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66. To install components or replace faulty DIMMs of other specifications, contact Technical Support.

· For the configured memory mode to take effect, make sure the following installation requirements are met:

Memory mode	DIMM population requirements
Independent	· If two processors are present, see Figure 16. · If four processors are present, see Figure 17 and Figure 18.
Mirror	· Make sure at least two DIMMs are installed for one processor. · This mode typically does not support memory configurations that are not recommended by the installation guidelines. · If two processors are present, see Figure 16. · If four processors are present, see Figure 17 and Figure 18.

Memory mode

DIMM population requirements

Independent

· If two processors are present, see Figure 16.

· If four processors are present, see Figure 17 and Figure 18.

Mirror

· Make sure at least two DIMMs are installed for one processor.

· This mode typically does not support memory configurations that are not recommended by the installation guidelines.

· If two processors are present, see Figure 16.

· If four processors are present, see Figure 17 and Figure 18.

NOTE:

In Figure 16, Figure 17, and Figure 18, the black DIMM slots (for example, the F1 slot) are grey colored, and the white DIMM slots (for example, the F0 slot) are not colored.

Figure 15 DDR5 DIMM population schemes for two processors

Figure 16 DDR5 DIMM population schemes for two processors (1)

Figure 17 DDR5 DIMM population schemes for two processors (2)

SAS/SATA drives

Support of SAS/SATA drives for hot swapping depends on the storage controller model as follows:

· SAS/SATA drives managed by a standard storage controller support hot swapping after the server enters the BIOS or operating system.

· SATA drives managed by the embedded VROC storage controller support hot swapping only after the server enters the operating system.

If you hot swap an HDD repeatedly within 30 seconds, the system might fail to identify the drive.

If you are using the drives to create a RAID, follow these restrictions and guidelines:

· To avoid degraded RAID performance or RAID creation failures, make sure all drives in the RAID are the same type (HDDs or SSDs) and have the same connector type (SAS or SATA).

· For efficient use of storage, use drives that have the same capacity to build a RAID. If the drives have different capacities, the lowest capacity is used across all drives in the RAID.

· If one drive is used by several logical drives, RAID performance might be affected and maintenance complexities will increase.

· If the installed drive contains RAID information, you must clear the information before configuring RAIDs. As a best practice, install drives that do not contain RAID information.

NVMe drives

The server supports U.2 and E1.S NVMe drives.

Support for hot removal and managed hot removal of NVMe drives varies by operating system. For more information, use the OS compatibility lookup tool at http://iconfig-chl.h3c.com/iconfig/OSIndex. For more information, see H3C Servers NVMe Drive Online Replacement User Guide.

If an operating system supports hot swapping of NVMe drives, follow these guidelines:

· Insert NVMe drives steadily without pauses to prevent the operating system from being stuck or restarted.

· Do not hot swap multiple NVMe drives at the same time. As a best practice, hot swap NVMe drives one after another at intervals longer than 30 seconds. After the operating system identifies the first NVMe drive, you can hot swap the next drive. If you insert multiple NVMe drives simultaneously, the system might fail to identify the drives.

If you are using the drives to create a RAID, follow these restrictions and guidelines:

· For efficient use of storage, use drives that have the same capacity to build a RAID with redundancy. If the drives have different capacities, the lowest capacity is used across all drives in the RAID. A drive with extra capacity cannot be used to build other RAIDs.

· As a best practice, install drives that do not contain RAID information.

M.2 SSDs

M.2 SSD drives are installed on the server using the M.2 SSD expander module. You can install the M.2 SSD expander module to the server front or server rear. M.2 SSD drives can be front or rear M.2 SSD drives according to their installation locations.

Guidelines for installing front SATA/NVMe M.2 SSDs

· The front M.2 SSD expander module is installed between the drive backplane and the fan modules at the front of the chassis. It supports both SATA and NVMe M.2 SSDs and is connected to the system board with cables. A maximum of two SSDs can be installed. For more information, see "Connecting the front SATA/NVMe M.2 SSD expander module cable."

· If you are installing two SATA/NVMe M.2 SSDs, install two SATA/NVMe M.2 SSDs of the same model to ensure high availability. Two SATA/NVMe M.2 SSDs installed on a front M.2 expander module support building a RAID and RAID 0 and RAID 1 are supported.

· As a best practice, use SATA/NVMe M.2 SSDs to install the operating system.

Figure 18 Front view of the front M.2 SSD expander module

(1) Dara cable connector	(2) M.2 SSD card slot 1

Figure 19 Rear view of the front M.2 SSD expander module

(1) M.2 SSD card slot 2

Guidelines for installing rear NVMe M.2 SSDs

· A rear NVMe M.2 expander module (model: RAID-MARVELL-SANTACRUZ-LP-2i) is required for NVMe M.2 SSDs and you can install a maximum of two NVMe M.2 SSDs at the rear of the chassis.

· If you are installing two rear NVMe M.2 SSDs, install two NVMe M.2 SSDs of the same model to ensure high availability.

· The rear NVMe M.2 expander module supports building a RAID for NVMe M.2 SSDs and RAID 0 and RAID 1 are supported. For more information about configuring a RAID, see the storage controller user guide.

· The rear NVMe M.2 expander module supports being installed in a PCIe slot with x8 or higher bus bandwidth.

• As a best practice, use NVMe M.2 SSDs to install the operating system.

Figure 20 NVMe M.2 SSD expander module

(1) NVMe M.2 SSD card slot 1	(2) NVMe M.2 SSD card slot 2

Server management module

The server management module is installed on the system board to provide I/O connectors and HDM out-of-band features for the server.

Figure 21 Server management module

(1) VGA connector	(2) Two USB 3.0 connectors
(3) HDM dedicated network interface	(4) UID LED
(5) Serial port	(6) iFIST module
(7) NCSI connector

Serial & DSD module

The serial & DSD module is installed in slot 24 on the server rear panel. The module provides two SD slots and RAID 1 is set up for these two SDs by default.

Figure 22 Serial & DSD module

Table 9 Component description

Item	Description
1	SD card slot 1
2	SD card slot 2
3	Serial port

SD cards

Two SD cards installed on the SD expander module can form RAID1 by default. To avoid the waste of SD card storage space, install two SD cards that have the same storage capacity.

Riser cards and PCIe modules

Typically, the PCIe modules are available in the following standard form factors:

· LP—Low profile.

· FHHL—Full height and half length.

· FHFL—Full height and full length.

· HHHL—Half height and half length.

· HHFL—Half height and full length.

Restrictions and guidelines

The following PCIe modules require PCIe I/O resources: Storage controllers, Ethernet adapters, and converged network adapters. Make sure the number of such PCIe modules installed does not exceed 11. For information about types of PCIe modules, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66.

If a processor is faulty or absent, the PCIe slots connected to it are unavailable. For more information about riser card, PCIe slot, and processor mappings, see riser cards in "Appendix B Component specifications."

The server provides three PCIe riser connectors on the system board to connect riser cards, which hold PCIe modules. For information about the connector locations of PCIe riser connectors on the system board, see system board components in "Appendix A Server specifications." For information about PCIe slots on a riser card, see riser cards in "Appendix B Component specifications."

You can install a PCIe module in a PCIe slot for a larger-sized PCIe module. For example, an LP PCIe module can be installed in a slot for an FHFL PCIe module.

A PCIe slot can supply power to the installed PCIe module if the maximum power consumption of the module does not exceed 75 W. If the maximum power consumption exceeds 75 W, a power cord is required.

The description for PCIe5.0 x16 (16,8,4) is as follows:

· PCIe5.0: Fifth-generation signal speed.

· x16: Connector bandwidth.

· (16,8,4,): Compatible bus bandwidth, including x16, x8, and x4.

For an x8 MCIO connector, x8 indicates the bus bandwidth.

Riser card and PCIe module compatibility

The riser card and PCIe module compatibility is as shown in Table 11, Table 12, Table 13, Table 14, Table 15, Table 16, and Table 17.

Table 10 Riser card and PCIe module compatibility (1)

Riser card model	Riser card location	PCIe slots on a riser card	PCIe slot or connector description	PCIe module for PCIe slot or connector	PCIe slot power capability	Processor
RC-7FHHL-4U-G6	PCIe riser connector 1	Slot 1	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slot 2	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slot 3	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slot 4	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slot 5	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 1
		Slot 6	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 1
		Slot 7	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 1
		PCIe PORT A1	x8 MCIO connector	Connected to MCIO connector C3-P0A on the processor mezzanine board, providing an x8 PCIe link for slot 1	N/A	Processor 3
		PCIe PORT A2	x8 MCIO connector	Connected to MCIO connector C3-P0C on the processor mezzanine board, providing an x8 PCIe for slot 2	N/A	Processor 3
		PCIe PORT B1	x8 MCIO connector	Connected to MCIO connector C3-P1A on the processor mezzanine board, providing an x8 PCIe for slot 3	N/A	Processor 3
		PCIe PORT B2	x8 MCIO connector	Connected to MCIO connector C3-P1C on the processor mezzanine board, providing an x8 PCIe for slot 4	N/A	Processor 3
		PCIe PORT C1	x8 MCIO connector	Connected to MCIO connector C1-P1A on the system board, providing an x8 PCIe for slot 5	N/A	Processor 1
		PCIe PORT C2	x8 MCIO connector	Connected to MCIO connector C1-P1C on the system board, providing an x8 PCIe for slot 6	N/A	Processor 1
	PCIe riser connector 2	Slot 8	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slot 9	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slot 10	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 4
		Slot 11	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 4
		Slot 12	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 2
		Slot 13	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 2
		Slot 14	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 2
		PCIe PORT A1	x8 MCIO connector	Connected to MCIO connector C3-P2A on the processor mezzanine board, providing an x8 PCIe for slot 8	N/A	Processor 3
		PCIe PORT A2	x8 MCIO connector	Connected to MCIO connector C3-P2C on the processor mezzanine board, providing an x8 PCIe for slot 8	N/A	Processor 3
		PCIe PORT B1	x8 MCIO connector	Connected to MCIO connector C4-P0A on the processor mezzanine board, providing an x8 PCIe for slot 10	N/A	Processor 4
		PCIe PORT B2	x8 MCIO connector	Connected to MCIO connector C4-P0C on the processor mezzanine board, providing an x8 PCIe for slot 11	N/A	Processor 4
		PCIe PORT C1	x8 MCIO connector	Connected to MCIO connector C2-P2A on the system board, providing an x8 PCIe for slot 12	N/A	Processor 2
		PCIe PORT C2	x8 MCIO connector	Connected to MCIO connector C2-P2C on the system board, providing an x8 PCIe for slot 13	N/A	Processor 2

Table 11 Riser card and PCIe module compatibility (2)

Riser card model	Riser card location	PCIe slots on a riser card	PCIe slot or connector description	PCIe module for PCIe slot or connector	PCIe slot power capability	Processor
RC-3FHHL/1FHFL-4U-G6	PCIe riser connector 1	Slots 1 and 2	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slots 3 and 4	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slots 5 and 6	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 1
		Slot 7	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 1
		PCIe PORT A1	x8 MCIO connector	Connected to MCIO connectors C3-P0A and C3-P0C on the system board, providing an x16 PCIe link for slot 2 with x8 MCIO connector PCIe SLOT A2	N/A	Processor 3
		PCIe PORT A2	x8 MCIO connector	Connected to MCIO connectors C3-P0A and C3-P0C on the system board, providing an x16 PCIe link for slot 2 with x8 MCIO connector PCIe SLOT A1	N/A	Processor 3
		PCIe PORT B1	x8 MCIO connector	Connected to MCIO connector C3-P1C(X16-A) on the system board, providing an x16 PCIe link for slot 4 with x8 MCIO connector PCIe SLOT B2	N/A	Processor 3
		PCIe PORT B2	x8 MCIO connector	Connected to MCIO connector C3-P1A(X16-C) on the system board, providing an x16 PCIe link for slot 4 with x8 MCIO connector PCIe SLOT B1	N/A	Processor 3
		PCIe PORT C1	x8 MCIO connector	Connected to MCIO connector C1-P1A on the system board, providing an x16 PCIe link for slot 6 with x8 MCIO connector PCIe SLOT C2	N/A	Processor 1
		PCIe PORT C2	x8 MCIO connector	Connected to MCIO connector C1-P1C on the system board, providing an x16 PCIe link for slot 6 with x8 MCIO connector PCIe SLOT C1	N/A	Processor 1
	PCIe riser connector 2	Slots 8 and 9	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 3
		Slots 10 and 11	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 4
		Slots 12 and 13	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 2
		Slot 14	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 2
		PCIe PORT A1	x8 MCIO connector	Connected to MCIO connector C3-P2A on the processor mezzanine board, providing an x16 PCIe link for slot 9 with x8 MCIO connector PCIe SLOT A2	N/A	Processor 3
		PCIe PORT A2	x8 MCIO connector	Connected to MCIO connector C3-P2C on the processor mezzanine board, providing an x16 PCIe link for slot 9 with x8 MCIO connector PCIe SLOT A1	N/A	Processor 3
		PCIe PORT B1	x8 MCIO connector	Connected to MCIO connector C4-P0A on the processor mezzanine board, providing an x16 PCIe link for slot 11 with x8 MCIO connector PCIe SLOT B2	N/A	Processor 4
		PCIe PORT B2	x8 MCIO connector	Connected to MCIO connector C4-P0C on the processor mezzanine board, providing an x16 PCIe link for slot 11 with x8 MCIO connector PCIe SLOT B1	N/A	Processor 4
		PCIe PORT C1	x8 MCIO connector	Connected to MCIO connector C2-P2A on the system board, providing an x16 PCIe link for slot 13 with x8 MCIO connector PCIe SLOT C2	N/A	Processor 2
		PCIe PORT C2	x8 MCIO connector	Connected to MCIO connector C2-P2C on the system board, providing an x16 PCIe link for slot 13 with x8 MCIO connector PCIe SLOT C1	N/A	Processor 2

Table 12 Riser card and PCIe module compatibility (3)

Riser card model	Riser card location	PCIe slots on a riser card	PCIe slot or connector description	PCIe module for PCIe slot or connector	PCIe slot power capability	Processor
RC-2FHHL/2FHFL-4U-G6	PCIe riser connector 1	Slots 1 and 2	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 3
		Slots 3 and 4	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 1
		Slot 7	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 1
		PCIe PORT A1	x8 MCIO connector	Connected to MCIO connectors C3-P1C(X16-A) and C3-P1A(X16-C) on the system board, providing an x16 PCIe link for slot 2 with x8 MCIO connector PCIe SLOT A2	N/A	Processor 3
		PCIe PORT A2	x8 MCIO connector	Connected to MCIO connectors C3-P1C(X16-A) and C3-P1A(X16-C) on the system board, providing an x16 PCIe link for slot 2 with x8 MCIO connector PCIe SLOT A1	N/A	Processor 3
		PCIe PORT B1	x8 MCIO connector	Connected to MCIO connector C1-P1A on the system board, providing an x16 PCIe link for slot 4 with x8 MCIO connector PCIe SLOT B2	N/A	Processor 1
		PCIe PORT B2	x8 MCIO connector	Connected to MCIO connector C1-P1C on the system board, providing an x16 PCIe link for slot 4 with x8 MCIO connector PCIe SLOT B1	N/A	Processor 1
	PCIe riser connector 2	Sots 8 and 9	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 2
		Sots 10 and 11	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 4
		Slot 14	PCIe5.0 x16 (8,4)	FHHL	75W	Processor 4
		PCIe PORT A1	x8 MCIO connector	Connected to MCIO connectors C4-P0A and C4-P0C on the system board, providing an x16 PCIe link for slot 9 with x8 MCIO connector PCIe SLOT A2	N/A	Processor 2
		PCIe PORT A2	x8 MCIO connector	Connected to MCIO connectors C4-P0A and C4-P0C on the system board, providing an x16 PCIe link for slot 9 with x8 MCIO connector PCIe SLOT A1	N/A	Processor 2
		PCIe PORT B1	x8 MCIO connector	Connected to MCIO connector C2-P2A on the processor mezzanine board, providing an x16 PCIe link for slot 11 with x8 MCIO connector PCIe SLOT B2	N/A	Processor 4
		PCIe PORT B2	x8 MCIO connector	Connected to MCIO connector C2-P2C on the processor mezzanine board, providing an x16 PCIe link for slot 11 with x8 MCIO connector PCIe SLOT B1	N/A	Processor 4

Table 13 Riser card and PCIe module compatibility(4)

Riser card model	Riser card location	PCIe slots on a riser card	PCIe slot or connector description	PCIe module for PCIe slot or connector	PCIe slot power capability	Processor
RC-4HHHL-R3-4U-G6	PCIe riser connector 3	Slot 15	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 4
		Slot 16	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 4
		Slot 17	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 4
		Slot 18	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 4
		PCIe X8 SLOT1	Cable	Connected to MCIO connector C4-P1A on the processor mezzanine board, providing an x8 PCIe link for slot 15	N/A	Processor 4
		PCIe X8 SLOT2	Cable	Connected to MCIO connector C4-P1C on the processor mezzanine board, providing an x8 PCIe link for slot 16	N/A	Processor 4
		PCIe X8 SLOT3	Cable	Connected to MCIO connector C4-P2A on the processor mezzanine board, providing an x8 PCIe link for slot 17	N/A	Processor 4
		PCIe X8 SLOT4	Cable	Connected to MCIO connector C4-P2A on the processor mezzanine board, providing an x8 PCIe link for slot 18	N/A	Processor 4

Table 14 Riser card and PCIe module compatibility (5)

Riser card model	Riser card location	PCIe slots on a riser card	PCIe slot or connector description	PCIe module for PCIe slot or connector	PCIe slot power capability	Processor
RC-1FHHL/1FHFL-R3-4U-G6	PCIe riser connector 3	Slots 15 and 16	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 4
		Slots 17 and 18	PCIe5.0 x16 (16,8,4)	FHHL	75W	Processor 4
		PCIe X16 SLOT2	Cable	Connected to MCIO connector C4-P1C(X16-A) on the processor mezzanine board, providing an x16 PCIe link for slot 15	N/A	Processor 4
		PCIe X16 SLOT2	Cable	Connected to MCIO connector C4-P1A(X16-C) on the processor mezzanine board, providing an x16 PCIe link for slot 16	N/A	Processor 4
		PCIe X16 SLOT4	Cable	Connected to MCIO connector C4-P2A on the processor mezzanine board, providing an x16 PCIe link for slot 17	N/A	Processor 4
		PCIe X16 SLOT4	Cable	Connected to MCIO connector C4-P2C on the processor mezzanine board, providing an x16 PCIe link for slot 18	N/A	Processor 4

Table 15 Riser card and PCIe module compatibility (6)

Riser card model	Riser card location	PCIe slots on a riser card	PCIe slot or connector description	PCIe module for PCIe slot or connector	PCIe slot power capability	Processor
RC-2FHFL-R3-4U-G6	PCIe riser connector 3	Slots 15 and 16	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 4
		Slots 17 and 18	PCIe5.0 x16 (16,8,4)	FHFL	75W	Processor 4
		PCIe X16 SLOT2	Cable	Connected to MCIO connector C4-P1C(X16-A) on the processor mezzanine board, providing an x16 PCIe link for slot 15	N/A	Processor 4
		PCIe X16 SLOT2	Cable	Connected to MCIO connector C4-P1A(X16-C) on the processor mezzanine board, providing an x16 PCIe link for slot 16	N/A	Processor 4
		PCIe X16 SLOT4	Cable	Connected to MCIO connector C4-P2A on the processor mezzanine board, providing an x16 PCIe link for slot 17	N/A	Processor 4
		PCIe X16 SLOT4	Cable	Connected to MCIO connector C4-P2C on the processor mezzanine board, providing an x16 PCIe link for slot 18	N/A	Processor 4

Table 16 Riser card and PCIe module compatibility (7)

Riser card model	Riser card location	PCIe slots on a riser card	PCIe slot or connector description	PCIe module for PCIe slot or connector	PCIe slot power capability	Processor
RC-4HHHL-R4-4U-G6	PCIe riser connector 4	Slot 19	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 2
		Slot 20	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 2
		Slot 21	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 2
		Slot 22	PCIe5.0 x16 (8,4)	HHHL	75W	Processor 2
		PCIe X8 SLOT1	Cable	Connected to MCIO connector C2-P3A on the system board, providing an x8 PCIe link for slot 19	N/A	Processor 2
		PCIe X8 SLOT2	Cable	Connected to MCIO connector C2-P3C on the system board, providing an x8 PCIe link for slot 20	N/A	Processor 2
		PCIe X8 SLOT3	Cable	Connected to MCIO connector C2-P4A on the system board, providing an x8 PCIe link for slot 21	N/A	Processor 2
		PCIe X8 SLOT4	Cable	Connected to MCIO connector C2-P4C on the system board, providing an x8 PCIe link for slot 22	N/A	Processor 2

Storage controllers and power fail safeguard modules

About storage controllers

The server supports the following types of storage controllers:

· Embedded VROC controller—Embedded in the server and does not require installation.

· Standard storage controller—Comes in a standard PCIe form factor and typically requires a riser card for installation.

Embedded VROC controller

Item	Specifications
Type	Embedded in PCH of the system board
Number of internal ports	8 internal SAS ports (compatible with SATA)
Connectors	Two onboard ×4 SlimSAS connectors
Drive interface	6 Gbps SATA 3.0 Supports drive hot swapping
PCIe interface	PCIe3.0 ×4
RAID levels	0, 1, 5, 10
Built-in cache memory	N/A
Built-in flash	N/A
Power fail safeguard module	Not supported
Firmware upgrade	Upgrade with the BIOS

Standard storage controllers

For more information, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66.

Power fail safeguard module

For some storage controllers, you can order a power fail safeguard module to prevent data loss when power outage occurs.

A power fail safeguard module provides a flash card and a supercapacitor. When a system power failure occurs, this supercapacitor can provide power for a minimum of 20 seconds. During this interval, the storage controller transfers data from DDR memory to the flash card, where the data remains indefinitely or until the controller retrieves the data.

A supercapacitor has a lifespan of 3 to 5 years. If the lifespan of a supercapacitor expires, a supercapacitor exception might occur. The system notifies users of supercapacitor exceptions by using the following methods:

· For a PMC storage controller, the status of the flash card will become Abnormal_status code. You can check the status code to identify the exception. For more information, see HDM online help.

· For an LSI storage controller, the status of the flash card of the power fail safeguard module will become Abnormal.

You can also review log messages from HDM2 to identify supercapacitor exceptions.

For the power fail safeguard module to take effect, replace the supercapacitor before its lifespan expires.

The supercapacitor might have a low charge after the power fail safeguard module is installed or after the server is powered up. If the system displays that the supercapacitor has low charge, no action is required. The system will charge the supercapacitor automatically. You can view the status of the supercapacitor from the BIOS.

IMPORTANT:

After the supercapacitor replacement, verify that cache related settings are enabled for logical drives. For more information, see HDM2 online help.

Installation guidelines

You can install one or multiple standard storage controllers. When you install standard storage controllers, follow these restrictions and guidelines:

· Make sure the standard storage controllers are of the same vendor. For information about the available storage controllers and their vendors, visit the query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

· Install standard storage controllers in PCIe slots in the following order: slots 5, 6, 7, 1, 2, 3, and then 4. If a slot is installed with another module, install the standard storage controller in the next available slot. For information about PCIe slot locations, see rear panel view in "Appendix A Server specifications."

· If you install multiple storage controllers, connect each controller to the drive backplane of the corresponding bay: lower-numbered controller to lower-numbered bay and higher-numbered controller to higher-numbered bay. For information about drive bay locations, see front panel view in "Appendix A Server specifications."

Use Table 18 to identify the supercapacitor available for a storage controller.

Table 17 Standard storage controller and supercapacitor compatibility matrix

Standard storage controller	Supercapacitor	Supercapacitor installation location
RAID-LSI-9560-8i(4G)	BAT-LSI-G3-A	In the supercapacitor container at the server rear or on the air baffle
RAID-LSI-9560-LP-16i-8GB	BAT-LSI-G3-A
HBA-LSI-9500-LP-8i-12GB	Not supported	Not supported
HBA-LSI-9500-LP-16i-12GB	Not supported	Not supported

To replace the storage controller with a controller of a different model, back up data in the drives of the storage controller and clear RAID configuration.

To replace the storage controller with a controller of the same model, make sure the following configurations remain the same after replacement:

· Storage controller operating mode.

· Storage controller firmware version.

· BIOS boot mode.

· First boot option in Legacy mode.

For more information, see the storage controller user guide for the server and the BIOS user guide for the server.

NVMe VROC modules

Model	Description	RAID levels	Compatible NVMe drives
NVMe-VROC-Key-i	Intel® VROC Intel® Edition	0, 1, 5, 10	Intel NVMe drives
NVMe-VROC-Key-S	Intel® VROC Standard Edition	0, 1, 10	All NVMe drives
NVMe-VROC-Key-P	Intel® VROC Premium Edition	0, 1, 5, 10	All NVMe drives

Network adapters

OCP network adapters

You can install an OCP network adapter in slot 23 or 24 on the server. For information about the locations of the OCP network adapter slots, see rear panel view in "Appendix A Server specifications."

To hot swap an OCP network adapter in an OS that supports hot swapping, follow these restrictions and guidelines:

· OCP network adapters installed before the server is powered on support hot swapping. Make sure the replaced network adapter and the newly installed network adapter are the same model.

· OCP network adapters installed after the server is powered on do not support hot swapping. To replace such an OCP network adapter, first power off the server, replace the OCP network adapter, and then power on the server.

To replace an OCP network adapter in an OS that does not support hot swapping, first power off the server, replace the OCP network adapter, and then power on the server.

For operating systems that support hot swapping of OCP network adapters, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66.

Standard PCIe network adapters

To install a standard PCIe network adapter, a riser card is required. For more information about riser card and PCIe module compatibility, see "Riser cards and PCIe modules."

You cannot install PCIe network adapter NIC-GE-4P-360T-B2-1 in PCIe slot 1, 8, or 15. For cabling simplicity, do not install any other standard PCIe network adapter in PCIe slot 1, 8, or 15. For more information about PCIe slot locations, see rear panel view in "Appendix A Server specifications."

GPU modules

About GPU modules

Table 19 shows the GPU modules supported on the server

Table 18 GPU modules supported on the server

GPU type	GPU model	GPU form	GPU power cord	Power cord connection
Without power cord	GPU-A2-16G	LP, single-width	N/A	N/A
With power cord	GPU-A16-16G	FHFL, dual-width	Use H3C dedicated GPU power cord. For more information about power cord compatibility, contact Technical Support.	Connect the GPU power cord form the power connector of the GPU module to the power connector of the riser card. For more information, see Figure 46.
	GPU-A30-24G	FHFL, dual-width
	GPU-A40-48G	FHFL, dual-width
	GPU-A100-80G	FHFL, dual-width
	GPU-A800-80G	FHFL, dual-width

Installation guidelines

For information about configuration guides for the power cords of GPU modules, contact Technical Support.

As a best practice, install GPU modules of the same model on the server.

To install an FHFL dual-width GPU module, install them to slots as shown in Table 20, as a best practice, and follow these guidelines:

· Install GPU modules in PCIe slots with x16 bus bandwidth.

· If the number of GPU modules is equal to or smaller than 3, install one GPU to each riser card.

· If the number of GPU modules is equal to or greater than 4, install RC-2FHHL/2FHFL-4U-G6 riser cards to riser connectors 1 and 2, and install the RC-2FHFL-R3-4U-G6 riser card to riser connector 3.

NOTE:

When the number of GPU modules is equal to or greater than 4, replace the type of the connector between the system board and the processor mezzanine board and lower down the processor mezzanine board.

To install an HHHL GPU module, install them to slots as shown in Table 21, as a best practice, and follows these guidelines:

· If the number of GPU modules is greater than 10, install GPU modules in slots with x8 bus bandwidth.

· In other cases, install GPU modules in slots with x16 bus bandwidth.

Table 19 FHFL dual-width GPU installation rules

Number of GPUs	Recommended GPU installation slots
1	slot 2
2	slot 2/9
3	slot 2/9/16
4	slot 2/4/9/11
5	slot 2/4/9/11/16
6	slot 2/4/9/11/16/18

Table 20 HHHL GPU installation rules

Number of GPUs	Recommended GPU installation slots
1	slot 2
2	slot 2/4
3	slot 2/4/6
4	slot 2/4/6/7
5	slot 2/4/6/7/9
6	slot 2/4/6/7/9/11
7	slot 2/4/6/7/9/11/13
8	slot 2/4/6/7/9/11/13/14
9	slot 2/4/6/7/9/11/13/14/16
10	slot 2/4/6/7/9/11/13/14/16/18

For information about the locations of PCIe riser connectors, see system board components in "Appendix A Server specifications." For information about PCIe slots, see "Riser cards and PCIe modules." For more information about PCIe slot locations, see rear panel view in "Appendix A Server specifications."

Fan modules

The fan modules are hot swappable and support N+1 fan redundancy. That is, the server can operate correctly is a single fan fails.

Make sure all four fan modules are installed.

Power supplies

NOTE:

For more information about the specifications of power supplies, see the power supply manuals for them.

The power supplies installed on the server must be the same model. If they differ in model, HDM would raise an alarm.

The power supplies are hot swappable.

To avoid damage to hardware, use only H3C approved power supplies.

The server supports N+N power supply redundancy.

The system provides an overtemperature mechanism for power supplies. The power supplies automatically turn off when they encounter an overtemperature situation and automatically turn on when the overtemperature situation is removed.

LCD smart management module

Identify the installation location for the LCD smart management module. For more information, see front panel view in "Appendix A Server specifications."

Removing and installing the access panel

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Removing the access panel

1. If the access panel is locked, use a T15 Torx screwdriver to turn the screw on the locking lever of the access panel 90 degree anticlockwise to unlock the access panel.

2. Press the button on the locking lever and then lift the locking lever. The access panel will automatically slide to the server rear.

3. Lift the access panel to remove it from the server.

Installing the access panel

1. Open the locking lever of the access panel. Then, press the button on the locking lever and lift the locking lever.

2. Install the access panel:

a. Place the access panel on top of the chassis, with the guide pin in the chassis aligned with the pin hole in the panel.

b. Close the locking lever. The access panel automatically slides to the closed position.

c. (Optional.) Use a T15 Torx screwdriver to turn the screw on the locking lever of the access panel 90 degree clockwise to lock the access panel.

Removing and installing a riser card

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Removing a riser card

1. Remove the riser card. Slide the locking tab to release the locking lever.

2. Lift the locking lever, and then lift the riser card out of the chassis to remove the riser card.

Installing a riser card

1. Align the standouts on the riser card with the notches on the chassis and press the unlocking tab on the riser card.

2. Insert the riser card into the PCIe riser connector along the guide rails until you hear a click.

Removing and installing a blank

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

Removing and installing a blank

Install blanks over the empty slots if the following modules are not present and remove blanks before you install the following modules:

· Drives.

· LCD smart management module.

· Drive backplanes.

· Power supplies.

· Riser cards.

· PCIe modules.

· OCP network adapter.

Use Table 22 as a guide when you remove or install a blank for a hardware option.

Table 21 Removing or installing a blank

Task	Procedure
Remove a drive blank.	Press the latches on the drive blank inward with one hand, and pull the drive blank out of the slot.
Install a drive blank.	Insert the drive blank into the slot.
Remove the LCD smart management module blank.	From the inside of the chassis, use a flat-head screwdriver to push aside the clip of the blank and push the blank outward to disengage the blank. Then, pull the blank out of the server.
Install the LCD smart management module blank.	Insert the blank into the slot with the TOP mark facing up and push the blank until you hear a click.
Remove a drive backplane blank.	From the inside of the chassis, use a flat-head screwdriver to push aside the clip of the blank and push the blank outward to disengage the blank. Then, pull the blank out of the server.
Install a drive backplane blank.	Insert the drive backplane blank into the slot and push the blank until you hear a click.
Remove a power supply blank.	Hold and pull the power supply blank out of the slot.
Install a power supply blank.	Insert the power supply blank into the slot with the TOP mark facing up.
Remove a riser card blank.	Lift the riser card blank to remove it from the connector.
Install a riser card blank.	Insert the riser card blank into the slot along guide rails.
Remove a PCIe module blank.	Open the retaining latch of the riser card and then lift the blank upwards.
Install a PCIe module blank	Insert the PCIe module blank into the slot and then close the retaining latch of the riser card.
Remove an OCP network adapter blank	Insert the screwdriver into the small hole on the OCP network adapter blank, and then pull the blank out.
Install an OCP network adapter blank	Insert the OCP network adapter blank in to the slot.

Replacing a DIMM

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the DIMM installation guidelines. For more information, see "DIMMs."

Removing a DIMM

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle.

5. Remove the processor mezzanine board if the DIMM is on the system board.

6. Open the DIMM slot latches and pull the DIMM out of the slot to remove the DIMM.

Installing a DIMM

1. Install the DIMM. Align the notch on the DIMM with the connector key in the DIMM slot and press the DIMM into the socket until the latches lock the DIMM in place.

2. Install the removed processor mezzanine board.

3. Install the chassis air baffle.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

8. (Optional.) Enter the BIOS to change the memory mode, if necessary. For more information, see the BIOS user guide of the server.

Verifying the replacement

Use one of the following methods to verify that the DIMM is installed correctly:

· Using the operating system:

¡ For the Windows operating system, click Run from the Start menu, enter msinfo32, and verify the memory capacity of the DIMM.

¡ For the Linux operating system, execute the cat /proc/meminfo command to verify the memory capacity.

· Using HDM:

· Using BIOS:

Enter the BIOS, select Socket Configuration > Memory Configuration > Memory Topology, and press Enter. Then, verify the memory capacity of the DIMM.

If the memory capacity displayed is inconsistent with the actual capacity, remove and then install the DIMM, or replace the DIMM with a new DIMM.

For a DIMM in Mirror mode or enabled with memory rank sparing, the capacity displayed is smaller than the actual capacity.

Adding a processor

For information about how to add a processor, see H3C UniServer R6900 G5 Server Processor Installation Quick Start.

For more information about processor installation guidelines, see "Replacing a processor."

Replacing a processor

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the processor installation guidelines. For more information, see "Processors."

Removing a processor

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle.

5. Remove the processor mezzanine board if the processor is on the system board.

6. Remove the processor heatsink:

a. Loosen the four captive screws.

b. Open heatsink clips at the four corners.

c. Lift the heatsink slowly to remove it.

7. Remove the processor:

a. Lift the locking lever to release the processor.

b. Hold the processor to pull it out from the retaining bracket.

8. Remove the processor retaining bracket from the heatsink:

a. Release the four corner clips of the retaining bracket from the heatsink. You must press one clip and its cater-cornered clip outward, and press the other two clips inward.

b. Lift the retaining bracket to remove it from the heatsink.

9. Use isopropanol wiping cloth to clear the residual thermal grease from the processor top and heatsink.

Installing a processor

1. Install the retaining bracket onto the heatsink:

a. Close the ejector lever on the retaining bracket. Otherwise, the processor might fail to be installed in place.

b. Align the alignment triangle on the retaining bracket with the cut-off corner of the heatsink. Place the bracket on top of the heatsink, with the four corners of the bracket clicked into the four corners of the heatsink.

2. Smear thermal grease onto the processor:

a. Clean the heatsink. Make sure no thermal grease remains on the heatsink top.

b. Use the thermal grease injector to inject 0.6 ml of thermal grease to the five dots on the processor, 0.12 ml for each dot.

3. Install the processor onto the retaining bracket:

CAUTION:

To avoid damage to the processor, always hold the processor by its edges. Never touch the gold contacts on the processor bottom.

a. Align the small triangle on the processor with the alignment triangle in the retaining bracket, and align the guide pin on the bracket with the notch on the triangle side of the processor.

b. Lower the processor gently and make sure the guide pins on the opposite side of the bracket fit snugly into notches on the processor.

4. Install the heatsink onto the server:

a. Align the alignment triangle on the retaining bracket with the cut-off corner of the processor socket and the pin holes in the heatsink with the guide pins on the processor socket. Lower down the heatsink on the processor socket.

b. Press down the heatsink clips at the four corners to lock the heatsink in place.

c. Use a T30 Torx screwdriver to fasten the four captive screws on the heatsink.

CAUTION:

To avoid poor contact between the processor and the system board or damage to the pins in the processor socket, tighten the screws to a torque value in the range of 6 to 12 in-lbs.

5. Paste bar code label supplied with the processor over the original label on the heatsink.

IMPORTANT:

This step is required for you to obtain H3C's processor servicing.

6. Install the removed processor mezzanine board.

7. Install the chassis air baffle.

8. Install the access panel. For more information, see "Installing the access panel."

9. Rack-mount the server. For more information, see "Rack-mounting the server."

10. Connect the power cord. For more information, see "Connecting the power cord."

11. Power on the server. For more information, see "Powering on the server."

Verifying the replacement

Log in to HDM and view the operating status of the processor to verify that the processor is operating correctly. For more information, see the HDM online help.

Replacing a SAS/SATA drive

To configure RAID settings after the drive is replaced, see the storage controller user guide for the server.

SAS/SATA drives controlled by the storage controller support hot swapping after the device enters the BIOS or the operating system.

SATA drives controlled by the embedded VROC controller support hot swapping after the device enters the operating system.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the position of the drive to be replaced.

Identify the RAID array information of the drive to be replaced. To replace a drive in a non-redundancy RAID array, back up data in the RAID array if the old drive is full or the new drive is of a different model.

Identify the drive installation guidelines. For more information, see "SAS/SATA drives."

Removing a SAS/SATA drive

1. Observe the drive LEDs to verify that the drive is not selected by the storage controller and is not performing a RAID migration or rebuilding. For more information about drive LEDs, see drive LEDs in "Appendix B Component specifications".

2. Remove the drive:

¡ To remove an SSD, press the button on the drive panel to release the locking lever, and then hold the locking lever and pull the drive out of the slot.

¡ To remove an HDD, press the button on the drive panel to release the locking lever. Pull the drive 3 cm (1.18 in) out of the slot. Wait for a minimum of 30 seconds for the drive to stop rotating, and then pull the drive out of the slot.

3. Remove the drive carrier. Remove the screws that secure the drive and then remove the drive from the carrier.

Installing a SAS/SATA drive

IMPORTANT:

As a best practice, install drives that do not contain RAID information.

1. Attach the drive to the drive carrier. Place the drive in the carrier and then use four screws to secure the drive into place.

2. Insert the drive into the slot and push it gently until you cannot push it further, and then close the locking lever.

Verifying the replacement

Use one of the following methods to verify that the drive has been replaced correctly:

· Verify the drive properties (including capacity) by using one of the following methods:

¡ Log in to HDM. For more information, see H3C Servers HDM online help.

¡ Access the BIOS. For more information, see the storage controller user guide for the server.

¡ Access the CLI or GUI of the server.

· Observe the drive LEDs to verify that the drive is operating correctly. For more information about drive LEDs, see drive LEDs in "Appendix B Component specifications".

Replacing an NVMe drive

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the position of the drive to be replaced.

Identify the drive installation guidelines. For more information, see "NVMe drives."

Removing an NVMe drive

1. Identify whether the operating system of the server supports hot removal and managed hot removal of NVMe drives.

¡ If the operating system supports hot removal or managed hot removal, identify the NVMe drive to be removed, and then perform managed hot removal for the drive. For more information, see "Appendix C Hot swapping and managed hot removal of NVMe drives."

¡ If the operating system does not support hot removal or managed hot removal, power off the server. For more information, see "Powering off the server."

2. Remove the drive. Press the button on the drive panel to release the locking lever, and then hold the locking lever and pull the drive out of the slot.

3. Remove the drive carrier. Remove the screws that secure the drive and then remove the drive from the carrier.

Installing an NVMe drive

1. Attach the drive to the drive carrier. Place the drive in the carrier and then use four screws to secure the drive into place.

2. Insert the drive into the slot and push it gently until you cannot push it further, and then close the locking lever.

Verifying the replacement

Use the following methods to verify that the drive is installed correctly:

· Verify the drive properties (including capacity) by using one of the following methods:

¡ Access HDM. For more information, see HDM online help.

¡ Access the BIOS. For more information, see the BIOS user guide for the server.

¡ Access the CLI or GUI of the server.

· Observe the drive LEDs to verify that the drive is operating correctly. For more information, see "Drive LEDs."

Replacing the system board

Guidelines

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

To prevent electrostatic discharge, place the removed parts on an antistatic surface or in antistatic bags.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the system board

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the OCP network adapter.

4. Remove the power supplies.

5. Remove the access panel. For more information, see "Removing the access panel."

6. Remove the system board air baffle.

¡ Disconnect the supercapacitor extension cable, if any, from the system board.

¡ Lift the air baffle to release the notches on both sides of the air baffle from the pegs on the chassis. Then, remove the air baffle.

7. Remove all fans.

8. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

9. Remove all riser cards installed on the server.

10. Remove the riser card cage.

11. Remove the processor mezzanine board.

12. Disconnect all cables connected to the system board.

13. Remove the cable baffle.

14. Remove all components installed on the system board, for example, the NVMe VROC module.

15. Removed the DIMMs.

16. Remove the processors and heatsinks.

17. Install protective covers over the empty processor sockets. Place a cover on each socket and press the cover diagonally to secure it.

18. Remove the system board:

a. Loosen the two captive screws on the system board.

b. Hold the system board handle and slide the system board toward the server front. Then, lift the system board to remove it from the chassis.

Installing the system board

1. Install the system board:

a. Hold the system board handle and slowly place the system board in the chassis. Then, slide the system board toward the server rear until the connectors (for example, USB connectors and the Ethernet port) on it are securely seated.

NOTE:

The connectors are securely seated if you cannot use the system board handle to lift the system board.

b. Fasten the two captive screws on the system board.

2. Installed the removed cable cover.

3. Reconnect cables to the system board.

4. Remove the installed protective covers over the processor sockets. Hold a cover and lift it straight up and away from a socket.

5. Install the removed processors and heatsinks.

6. Install the removed DIMMs.

7. Install the removed components (for example, the NVMe VROC module) on the system board.

8. Install the removed fan cage. Place the fan cage in the chassis and then close the locking levers at the two ends of the fan cage.

9. Install the removed fans.

10. Install the removed processor mezzanine board.

11. Install the removed riser card cage.

12. Install the removed riser cards.

13. Install the system board air baffle.

14. Install the access panel.

15. Install the removed OCP network adapter.

16. Install the removed power supplies.

17. Rack-mount the server. For more information, see "Rack-mounting the server."

18. Connect the power cord. For more information, see "Connecting the power cord."

19. Power on the server. For more information, see "Powering on the server."

Replacing the processor mezzanine board

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the processor mezzanine board

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the mezzanine board air baffle:

a. Disconnect the supercapacitor extension cable if a supercapacitor is installed on the mezzanine board.

b. Lift the air baffle to release the notches on both sides of the air baffle from the pegs on the chassis. Then, remove the air baffle.

5. Remove all processors and heatsinks from the processor mezzanine board.

6. Install protective covers over the empty processor sockets. Place a cover on each socket and press the cover diagonally to secure it.

7. Remove DIMMs from the processor mezzanine board.

8. Disconnect cables from the processor mezzanine board, if any.

9. Remove the processor mezzanine board:

a. Remove riser card 3, if any. For more information, see "Removing a riser card and a PCIe module."

b. Disconnect all cables from the processor mezzanine board.

c. Press the unlocking button on the locking levels to release the handle of the processor mezzanine board, and then lift the handle up a little bit.

d. Hold the handle and the screw and lift the processor mezzanine board out of the chassis.

Installing the processor mezzanine board

1. Install the midplane to the processor mezzanine board. Align the locating pins on the midplane with the guide pins on the processor mezzanine board, place the midplane onto the processor mezzanine board, and then use screws to secure the mid plane into place.

2. Remove the protective cover from each processor socket. Hold the protective cover and lift it to release it from the processor socket.

3. Install the removed processors and heatsinks.

4. Install the removed DIMMs.

5. Install the processor mezzanine board:

a. Hold the handle and the screw on the processor mezzanine board and place it in the chassis.

b. Press and close the locking levers at both sides till they click into place.

c. Install the removed GPU support brackets. Slide a GPU support bracket along the slot until the standout of the GPU fits into the notch of the GPU support bracket.

d. Install removed riser card 3. For more information, see "Installing PCIe modules and a riser card on PCIe riser connector 3."

6. Re-connect all disconnected cables to the processor mezzanine board.

7. Install the air baffle of the processor mezzanine board:

a. Align the notches at both sides of the air baffle with the pegs on the chassis, and place the air baffle into the server.

b. Connect the disconnected supercapacitor extension cables, if any.

8. Install the access panel. For more information, see "Installing the access panel."

9. Rack-mount the server. For more information, see "Rack-mounting the server."

10. Connect the power cord. For more information, see "Connecting the power cord."

11. Power on the server. For more information, see "Powering on the server."

Replacing the midplane

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the midplane

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle:

a. Disconnect the supercapacitor extension cable if a supercapacitor is installed on the mezzanine board.

b. Hold the air baffle by the holes at both ends, press the blue tabs, and lift the air baffle out of the chassis.

5. Remove the processor mezzanine board.

6. Remove the midplane. Remove all the screws that secure the midplane to the server, and then pull the midplane out of the chassis.

Installing the midplane

1. Install a midplane:

a. Insert the midplane into a slot in the processor mezzanine board.

b. Fasten the screws to secure the midplane into place.

2. Install the removed processor mezzanine board.

3. Install the chassis air baffle:

a. Place the chassis air baffle in the chassis.

b. Connect the disconnected supercapacitor extension cables, if any.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a drive backplane

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a drive backplane

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the drives attached to the backplane.

4. Remove the access panel. For more information, see "Removing the access panel."

5. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

6. Disconnect cables from the backplane.

7. Remove the drive backplane. Loosen the captive screws that secure the backplane, and then lift the backplane out of the chassis.

Installing a drive backplane

1. Install a drive backplane. Place the backplane in the slot and then fasten the captive screws.

2. Connect cables to the drive backplane.

3. Install the removed fan cage. Place the fan cage in the chassis and then close the locking levers at the two ends of the fan cage.

4. Install the access panel. For more information, see "Installing the access panel."

5. Install the removed drives.

6. Rack-mount the server. For more information, see "Rack-mounting the server."

7. Connect the power cord. For more information, see "Connecting the power cord."

8. Power on the server. For more information, see "Powering on the server."

Installing PCIe modules and a riser card on PCIe riser connector 3

Guidelines

For more information, see "Replacing riser cards and PCIe modules."

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Procedure

1. Identify the position of the PCIe riser connector. For more information, see system board components in "Appendix A Server specifications."

2. Power off the server. For more information, see "Powering off the server."

3. Remove the server from the rack. For more information, see "Removing the server from a rack."

4. Remove the access panel. For more information, see "Removing the access panel."

5. Remove the chassis air baffle.

6. Remove the PCIe riser card blank. Lift the blank to remove it from the chassis.

7. Install a PCIe module to the riser card:

a. Open the retaining latch of the riser card.

b. Remove the PCIe module blank.

c. Install the PCIe module to the riser card. Insert the PCIe module into the PCIe slot along the guide rails, and then close the retaining latch.

8. Install the mounting bracket. Align the guide pins on the mounting bracket with the guide holes on the server chassis, place the bracket downwards, and secure it with screws.

9. Install the riser card installed with the PCIe module. Insert the riser card into the PCIe riser connector along the guide rails.

10. Connect cables to the riser card or PCIe modules, if any.

11. Install the blank. Align the standouts on the blank with the notches on the chassis, and insert the blank into the slot.

12. Install the chassis air baffle.

13. Install the access panel. For more information, see "Installing the access panel."

14. Rack-mount the server. For more information, see "Rack-mounting the server."

15. Connect the power cord. For more information, see "Connecting the power cord."

16. Power on the server. For more information, see "Powering on the server."

Replacing riser cards and PCIe modules

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing a riser card and PCIe module. For more information, see "Riser cards and PCIe modules."

Removing a riser card and a PCIe module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle.

5. Disconnect all cables that hinder the replacement, if any.

6. Remove the riser card installed with a PCIe module. Pressing the unlocking tab on the riser card, lift the riser card out of the chassis.

7. Remove the PCIe module from the riser card. Open the retaining latch of the riser card, and then pull the PCIe module out of the slot.

Installing a riser card and a PCIe module

1. Install the PCIe module on the riser card:

a. Open the retaining latch of the riser card.

b. Remove the PCIe module blank.

c. Install the PCIe module to the riser card. Insert the PCIe module into the PCIe slot along the guide rails, and then close the retaining latch.

2. Install the riser card on the server:

a. Unlock the riser card. Slide the locking tab to release the locking lever.

b. Insert the riser card into the PCIe riser connector along the guide rails, and then, close the locking lever. The riser card will automatically slide into place.

WARNING!

For the riser card to be installed correctly, press the connector of the riser card after the locking lever is closed.

3. Connect cables to the riser card or PCIe modules, if any.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a storage controller and a power fail safeguard module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Guidelines

To replace the storage controller with a controller of a different model, back up data in the drives of the storage controller and clear RAID configuration.

To replace the storage controller with a controller of the same model, make sure the following configurations remain the same after replacement:

· Storage controller operating mode.

· Storage controller firmware version.

· BIOS boot mode.

· First boot option in Legacy mode.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing a storage controller and a power fail safeguard module. For more information, see "Storage controllers and power fail safeguard modules."

Removing a standard storage controller and a power fail safeguard module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Disconnect all cables from the standard storage controller.

5. Remove the standard storage controller:

a. Remove the riser card where the standard storage controller resides. For more information, see "Removing a riser card and a PCIe module."

b. Remove the standard storage controller. For more information, see "Removing a standard storage controller and a power fail safeguard module."

6. Remove the power fail safeguard module or super capacitor, if any:

a. Remove the flash card on the storage controller, if any. Remove the screws that secure the flash card, and then remove the flash card.

b. Remove the supercapacitor. Pull the clip on the supercapacitor holder, and take the supercapacitor out of the holder.

c. Remove the supercapacitor holder. Lift the retaining latch at the bottom of the supercapacitor holder, and slide the holder to remove it.

Installing a standard storage controller and a power fail safeguard module

1. Install the supercapacitor on the supercapacitor holder:

a. Install the supercapacitor holder on the chassis air baffle. Place the supercapacitor holder in the chassis and slide it to the server rear until it snaps into place.

b. Connect one end of a supercapacitor extension cable to the supercapacitor.

c. Install the supercapacitor to the supercapacitor holder. Tilt the supercapacitor and insert one end of the supercapacitor into the holder. Pull the clip on the holder and insert the other end into the holder, and then release the clip.

2. Install the removed flash card on the power fail safeguard module:

a. Install the internal threaded studs supplied with the power fail safeguard module on the standard storage controller.

b. Install the flash card on the standard storage controller. Insert the flash card connector into the socket and use screws to secure the flash card on the storage controller.

3. Install the standard storage controller on the riser card. For more information, see "Installing a standard storage controller and a power fail safeguard module."

4. Install the riser card on the server. For more information, see "Installing a riser card and a PCIe module."

5. Connect the other end of the supercapacitor extension cable to the standard storage controller.

6. Install the access panel. For more information, see "Installing the access panel."

Replacing a network adapter

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing a network adapter. For more information, see "Network adapters."

Installing an OCP network adapter

1. Power off the server. For more information, see "Powering off the server."

2. Remove the OCP network adapter blank.

3. Install an OCP network adapter. Insert the OCP network adapter into the slot and fasten the captive screws on the network adapter.

4. Connect external cables to the OCP network adapter.

5. Power on the server. For more information, see "Powering on the server."

6. (Optional.) Configure a network port on the OCP network adapter as an HDM shared network port.

Replacing an OCP network adapter

Removing an OCP network adapter

1. Identify operating systems that support hot swapping of the OCP network adapter. For operating systems compatible with the server, visit the query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

2. Power off the server if hot swapping of the OCP network adapter is not supported. For more information, see "Powering off the server."

3. Disconnect all cables from the OCP network adapter.

4. Remove the OCP network adapter:

a. Press the ATTN BUTTON button on the OCP network adapter until both the POWER and ATTN BUTTON LEDs turn off. It takes about 10 seconds for the POWER LED to turn off from flashing green.

For more information about the POWER and ATTN BUTTON LEDs on the OCP network adapter, see the rear panel in "Appendix A Server specifications."

b. Loosen the captive screws on the OCP network adapter and pull the OCP network adapter out from the chassis.

Installing an OCP network adapter

1. Install the OCP network adapter:

a. Insert the OCP network adapter into the slot and fasten the captive screws on it.

b. Press the ATTN BUTTON button on the OCP network adapter until the POWER LED turns steady green from flashing green.

2. Connect cables to the OCP network adapter.

3. (Optional.) Power on the server. For more information, see "Powering on the server."

4. (Optional.) Configure a network port on the OCP network adapter as an HDM shared network port.

Replacing a standard PCIe network adapter

Removing a standard PCIe network adapter

1. Power off the server. For more information, see "Powering off the server."

2. Disconnect cables from the standard PCIe network adapter.

3. Remove the server from the rack. For more information, see "Removing the server from a rack."

4. Remove the access panel. For more information, see "Removing the access panel."

5. Disconnect all cables that hinder the replacement, if any.

6. Remove the riser card where the PCIe network adapter resides. For more information, see "Removing a riser card and a PCIe module."

7. Remove the PCIe network adapter. For more information, see "Removing a standard PCIe network adapter."

Installing a standard PCIe network adapter

For more information, see "Installing a riser card and a PCIe module."

Replacing a GPU module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the GPU installation guidelines. For more information, see "GPU modules."

Removing a GPU module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Disconnect all cables that hinder the replacement, if any.

5. Remove the riser card where the GPU module resides. For more information, see "Removing a riser card and a PCIe module."

6. Remove the GPU module from the riser card:

a. Disconnect the cable from the GPU module.

b. Open the retaining latch on the riser card, and pull the GPU module out from the slot.

Installing a GPU module

1. Install a GPU module on the riser card:

a. Insert the GPU module into the PCIe slot along the guide rails, and then close the retaining latch.

b. Connect the GPU module power cord.

2. Reconnect other cables to the riser card.

3. Install the riser card on the server. For more information, see "Installing a riser card and a PCIe module."

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a front SATA/NVMe M.2 SSD

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing a front SATA/NVMe M.2 SSD. For more information, see "M.2 SSDs."

Removing a SATA M.2 SSD

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card on which the front SATA/NVMe M.2 SSD expander module resides:

a. Disconnect the cable from the front SATA/NVMe M.2 SSD expander module.

b. Remove the riser card. For more information, see "Removing a riser card."

5. Remove the front SATA/NVMe M.2 SSD expander module from the riser card. For more information, see "Removing a front SATA/NVMe M.2 SSD expander module."

6. Remove front SATA/NVMe M.2 SSDs from the expander module. Remove the screw that secures an SSD on the expander module and then pull the SSD out.

Installing a front SATA/NVMe M.2 SSD

1. Install the SATA/NVMe M.2 SSD to the front SATA/NVMe M.2 SSD expander module. Insert the connector of the SSD into the socket and then use the screw to secure the SSD into place.

2. Install the expander module on a riser card. For more information, see "Installing a front SATA/NVMe M.2 SSD expander module."

3. Install the riser card on the server. For more information, see "Installing a riser card and a PCIe module."

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a front SATA/NVMe M.2 SSD expander module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a front SATA/NVMe M.2 SSD expander module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card on which the front SATA/NVMe M.2 SSD expander module resides:

a. Disconnect the cable from the front SATA/NVMe M.2 SSD expander module.

b. Remove the riser card. For more information, see "Removing a riser card and a PCIe module."

5. Remove the front SATA/NVMe M.2 SSD expander module from the riser card. For more information, see "Removing a front SATA/NVMe M.2 SSD expander module."

6. Remove all front SATA/NVMe M.2 SSDs. Remove the screws that secures the SSDs on the expander module and then pull the SSDs out.

Installing a front SATA/NVMe M.2 SSD expander module

1. Install front SATA/NVMe M.2 SSDs to the SATA M.2 SSD expander module. Insert the connector of an SSD into the socket and then use the screw to secure the SSD into place.

2. Install the expander module to a riser card. For more information, see "Installing a front SATA/NVMe M.2 SSD expander module."

3. Install the riser card to the server. For more information, see "Installing a riser card and a PCIe module."

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing an SD card

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing an SD card. For more information, see "SD cards."

Removing an SD card

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card cage that hinders the replacement.

5. Press the SD card to release it and then pull the SD card out of the slot.

Installing an SD card

1. Install a new SD card. Insert the SD card into the slot and gently press the SD card to secure it in the slot.

2. Install the removed riser card cage.

3. Install the access panel. For more information, see "Installing the access panel."

4. Rack-mount the server. For more information, see "Rack-mounting the server."

5. Connect the power cord. For more information, see "Connecting the power cord."

6. Power on the server. For more information, see "Powering on the server."

Replacing a dual SD card extended module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a dual SD card extended module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card cage that might hinder the replacement.

5. Remove the dual SD card extended module. Press the top clip and the side clip on the dual SD card extended module and pull the module out of the connector.

6. Remove all SD cards from the extended module. Press an SD card to release it and then pull the SD card out of the slot.

Installing a dual SD card extended module

1. Install SD cards on the dual SD card extended module. Insert an SD card into the slot and gently press the SD card to secure it in the slot.

2. Install the dual SD card extended module on the server. Insert the extender module into the slot along the guide rails until you hear a click.

3. Install the removed riser card cage.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing the LCD smart management module

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing the LCD smart management module. For more information, see "LCD smart management module."

Removing the LCD smart management module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

5. Remove the LCD smart management module:

a. Disconnect the LCD module cable from the system board.

b. Use a T10 Torx screwdriver or tweezers to press the clip of the LCD smart management module and pull the module out from the slot.

Install the LCD smart management module

1. Install the LCD smart management module:

a. Connect one end of the LCD module cable to the LCD smart management module.

b. Push the LCD smart management module into the slot until it snaps into place.

c. Connect the other end of the cable to the LCD smart management module connector on the system board.

2. Install the fan cage. Place the fan cage in the chassis and then close the locking levers at the two ends of the fan cage.

3. Install the access panel. For more information, see "Installing the access panel."

4. Rack-mount the server. For more information, see "Rack-mounting the server."

5. Connect the power cord. For more information, see "Connecting the power cord."

6. Power on the server. For more information, see "Powering on the server."

Installing and setting up a TCM or TPM

Trusted platform module (TPM) is a microchip embedded in the system board. It stores encryption information (such as encryption keys) for authenticating server hardware and software. The TPM operates with drive encryption programs such as Microsoft Windows BitLocker to provide operating system security and data protection. For information about Microsoft Windows BitLocker, visit the Microsoft website at http://www.microsoft.com.

Trusted cryptography module (TCM) is a trusted computing platform-based hardware module with protected storage space, which enables the platform to implement password calculation.

Installation and setup flowchart

Figure 23 TCM/TPM installation and setup flowchart

Guidelines

· Do not remove an installed TCM or TPM. Once installed, the module becomes a permanent part of the system board.

· If you want to replace the failed TCM or TPM, remove the system board, and then contact H3C Support to replace the TCM or TPM and the system board.

· When installing or replacing hardware, H3C technicians cannot configure the TCM or TPM or enter the recovery key. For security reasons, only the user can perform the tasks.

· When replacing the system board, do not remove the TCM or TPM from the system board. H3C will provide a TCM or TPM with a spare system board for the replacement.

· Any attempt to remove an installed TCM or TPM from the system board breaks or disfigures the TCM or TPM security rivet. Upon locating a broken or disfigured rivet on an installed TCP or TPM, administrators should consider the system compromised and take appropriate measures to ensure the integrity of the system data.

· H3C is not liable for blocked data access caused by improper use of the TCM or TPM. For more information, see the encryption technology feature documentation provided by the operating system.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Installing a TCM or TPM

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove all riser cards.

5. Remove the riser card cage.

6. Install the TCM or TPM.

The installation procedure is the same for a TPM and a TCM. The following information uses a TPM to show the procedure:

a. Press the TPM into the TPM connector on the system board.

b. Insert the rivet pin.

c. Insert the security rivet into the hole in the rivet pin and press the security rivet until it is firmly seated.

7. Install the removed riser card cage.

8. Install the removed riser cards.

9. Install the access panel. For more information, see "Installing the access panel."

10. Rack-mount the server. For more information, see "Rack-mounting the server."

11. Connect the power cord. For more information, see "Connecting the power cord."

12. Power on the server. For more information, see "Powering on the server."

Enabling the TCM or TPM in the BIOS

1. Enter the BIOS utility. For information about how to enter the BIOS utility, see the BIOS user guide.

2. Select Advanced > Trusted Computing, and press Enter.

3. Enable TCM or TPM. By default, the TCM and TPM are enabled for a server.

If the server is installed with a TPM, perform the following steps to enable TPM:

a. Select TPM State > Enabled, and press Enter.

b. Click Device Select, press Enter, and then select a TPM version.

If the TPM is installed with a TCM, perform the following steps to enable TCM:

c. Select TCM State > Enabled, and press Enter.

d. Click Device Select, press Enter, and then select a TPM version.

For more information, see the BIOS user guide for the server.

4. Log in to HDM to verify that the TCM or TPM is operating correctly. For more information, see HDM online help.

Configuring encryption in the operating system

For more information about this task, see the encryption technology feature documentation that came with the operating system.

The recovery key/password is generated during BitLocker setup, and can be saved and printed after BitLocker is enabled. When using BitLocker, always retain the recovery key/password. The recovery key/password is required to enter Recovery Mode after BitLocker detects a possible compromise of system integrity or firmware or hardware change.

For security purposes, follow these guidelines when retaining the recovery key/password:

· Always store the recovery key/password in multiple locations.

· Always store copies of the recovery key/password away from the server.

· Do not save the recovery key/password on the encrypted hard drive.

For more information about Microsoft Windows BitLocker drive encryption, visit the Microsoft website at http://technet.microsoft.com/en-us/library/cc732774.aspx.

Replacing the NVMe VROC module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Removing the NVMe VROC module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the processor mezzanine board, if any.

5. Remove the NVMe VROC module. Hold the ring part of the NVMe VROC module and pull the module out.

Installing the NVMe VROC module

1. Install a new NVMe VROC module. Insert the NVMe VROC module onto the NVMe VROC module connector on the system board.

2. Installed the removed processor mezzanine board, if any.

3. Install the access panel. For more information, see "Installing the access panel."

4. Rack-mount the server. For more information, see "Rack-mounting the server."

5. Connect the power cord. For more information, see "Connecting the power cord."

6. Power on the server. For more information, see "Powering on the server."

Replacing the system battery

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

The server comes with a system battery (Panasonic BR2032) installed on the system board, which supplies power to the real-time clock and has a lifespan of 3 to 5 years. If the server no longer automatically displays the correct date and time, you might need to replace the battery. As a best practice, use the Panasonic BR2032 battery to replace the old one.

NOTE:

The BIOS will restore to the default settings after the replacement. You must reconfigure the BIOS to have the desired settings, including the system date and time. For more information, see the BIOS user guide for the server.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the system battery

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the system battery. Pinch the system battery by its top edge and lift the battery out of the battery holder slowly.

NOTE:

For environment protection purposes, dispose of the used-up system battery at a designated site.

Installing the system battery

1. Install the system battery. Insert the system battery into the system battery holder on the management module.

2. Install the access panel. For more information, see "Installing the access panel."

3. Rack-mount the server. For more information, see "Rack-mounting the server."

4. Connect the power cord. For more information, see "Connecting the power cord."

5. Power on the server. For more information, see "Powering on the server."

6. Access the BIOS to reconfigure the system date and time. For more information, see the BIOS user guide for the server.

Replacing a fan module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

CAUTION:

To avoid component damage or server power-off caused by overtemperature, install a fan module on the server within 30 seconds after you remove one.

The fan modules are hot swappable.

If sufficient space is available for replacement, you can replace a fan module without removing the server from the rack.

Identify the fan module installation guidelines. For more information, see "Fan modules."

Removing a fan module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove a fan module. Lift the fan module handle and hold the handle to pull the fan module out of the slot.

Installing a fan module

1. Install a new fan module. Insert the fan module into the slot and close the fan module handle.

2. Install the access panel. For more information, see "Installing the access panel."

3. Rack-mount the server if the server has been removed. For more information, see "Rack-mounting the server."

4. Connect the power cord if the power cord has been disconnected. For more information, see "Connecting the power cord."

5. Power on the server if the server has been powered off. For more information, see "Powering on the server."

Replacing a power supply

The power supplies are hot swappable.

Guidelines

· If more than one operating power supply is present and the server rear has sufficient space for replacement, you can replace a power supply without powering off the server.

· If only one power supply is present, install the new power supply in the slot where the original one is installed.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing a power supply. For more information, see "Power supplies."

Removing a power supply

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the power cord from the power supply:

a. Press the tab to disengage the ratchet from the tie mount, slide the cable clamp outward, and then release the tab.

b. Open the cable clamp and remove the power cord out of the clamp.

c. Unplug the power cord.

4. Uninstall the CMA on the side of the power supply, if any:

a. Take out cables that hinder the replacement from the cable baskets of the CMA. During this operation, make sure cables required for server operation remain connected.

b. Press the tab on the CMA connector next to the power supply and then pull the connector out.

5. Remove the power supply. Holding the power supply by its handle and pressing the retaining latch with your thumb, pull the power supply slowly out of the slot.

Installing a power supply

1. Install a new power supply. Push the power supply into the slot until it snaps into place.

2. Installed the removed CMA, if any.

3. Rack-mount the server if the server has been removed. For more information, see "Rack-mounting the server."

4. Connect the power cord if the power cord has been disconnected. For more information, see "Connecting the power cord."

5. Power on the server if the server has been powered off. For more information, see "Powering on the server."

Replacing a chassis ear

The procedure is the same for the left and right chassis ears. This section uses the left chassis ear as an example.

Removing a chassis ear

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack, if the space over the server is insufficient. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

5. Remove the chassis air baffle. Hold the air baffle by the holes at both ends, press the blue tabs, and lift the air baffle out of the chassis.

6. Remove riser card 3, if any.

7. Remove the processor mezzanine board, if any.

8. Remove the front I/O component cable assembly:

a. Disconnect the front I/O component cable assembly from the system board.

b. Remove the screw that secures the cable protection plate, slide the plate toward the rear of the chassis, and then remove it from the chassis.

c. Pull the I/O component cable out of the slot.

9. Remove the chassis ear. Remove the screws that secure the left chassis ear, and then pull the chassis ear until it is removed.

Installing a chassis ear

1. Install a chassis ear. Attach the chassis ear to the corresponding side of the server, and use screws to secure the chassis ear into place.

2. Install the front I/O component cable assembly:

a. Insert the front I/O component cable assembly into the cable cutout.

b. Install the cable protection plate on the chassis.

c. Connect the front I/O component cable assembly to the front I/O connector on the system board.

3. Install the fan cage.

4. Install the removed processor mezzanine board.

5. Install the removed riser card 3.

6. Install the chassis air baffle.

7. Install the access panel. For more information, see "Installing the access panel."

8. Rack-mount the server. For more information, see "Rack-mounting the server."

9. Connect the power cord. For more information, see "Connecting the power cord."

10. Power on the server. For more information, see "Powering on the server."

Replacing the server management module

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the guidelines for installing the server management module. For more information, see "Server management module."

Removing the server management module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the OCP network adapter.

4. Remove all the power supplies.

5. Remove the access panel. For more information, see "Removing the access panel."

6. Remove the chassis air baffle. Life the air baffle out of the chassis.

7. Remove fan modules.

8. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

9. Disconnect all cables from the system board.

10. Remove the cable cover at the side of the chassis.

11. Remove all components from the system board, such as riser cards, DIMMs, and processors.

12. Install protective covers over empty processor sockets.

13. Remove the system board.

a. Loosen the two captive screws on the system board.

b. Hold the system board handle and slide the system board toward the server front. Then, lift the system board to remove it from the chassis.

14. Remove the server management module. Gently push the server management module towards the server front to completely disconnect the connectors inserted in the rear of the chassis from the server. Lift the server management module upward until it is detached from the server.

Installing the server management module

1. Install the server management module. Place the module into the chassis and adjust the position until all connectors on the module are inserted into the server rear.

2. Install the system board.

NOTE:

The connectors are securely seated if you cannot use the system board handle to lift the system board.

b. Fasten the two captive screws on the system board.

3. Installed the removed cable cover.

4. Reconnect cables to the system board.

5. Remove the installed protective covers over the processor sockets. Hold a cover and lift it straight up and away from a socket.

6. Install the removed components, such as riser cards, DIMMs, and processors.

7. Install the fan cage.

8. Install the removed fan cage. Place the fan cage in the chassis and then close the locking levers at the two ends of the fan cage.

9. Installed the air baffle.

10. Install the removed fan modules.

11. Install the access panel.

12. Install the removed OCP network adapter.

13. Install the removed power supplies.

14. Rack-mount the server. For more information, see "Rack-mounting the server."

15. Connect the power cord. For more information, see "Connecting the power cord."

16. Power on the server. For more information, see "Powering on the server."

Connecting internal cables

Guidelines

Follow these guidelines when connecting the internal cables:

· Properly route the internal cables and make sure they are not squeezed.

· Do not route the cables above the removable components, such as DIMMs.

· Route the internal cables without hindering installation or removal of other components or hindering other internal components.

· Route the cables neat and tidy in their own fixed spaces. Make sure the cables will not be squeezed or scratched by other internal components.

· Do not pull the connectors when routing the cables.

· Do not use a cable tie to bundle an excessive number of cables.

· Appropriately bind long cables. Coil and use cable ties to secure unused cables.

· Connect the drive cables until they click into place.

· Remove the cap (if any) from the target cable connector before connecting a cable to it.

· If you cannot identify the cables by labels provided with the cables, apply new labels to cables for easy identification.

Connecting drive cables

The section describes cabling only for typical drive configurations. For detailed cabling solutions for drives, including the connections between the cables and connectors, see Drive Configurations and Cabling Guide.

About using the drive configurations and cabling guide

Drive Configurations and Cabling Guide contains the following sheets:

· Drive configurations sheet—Provides detailed information about all drive configuration options supported by the server, including the type and number of drives, type, number and location of drive backplanes, type and slot of storage controllers, and routing schemes for AUX signal cables, power cords, and data cables.

· Glossary and examples sheet—Provides the common terms and examples.

This section uses 8SFF drive configuration to tell you how to use the guide for cabling.

To route cables for 8SFF drives:

1. Open Drive Configurations and Cabling Guide and click sheet Drive Configuration.

2. Locate the 8SFF SAS/SATA drive configuration.

3. Click the plus icon to expand the detailed drive configuration.

As shown in Figure 25, the slots in grey typically support SAS/SATA drives. However, if the value in the Card type column is VROC (SATA RAID), the embedded VROC storage controller is used and the slots in grey support only SATA drives.

For the drives supported in other colored slots, see Drive Configurations and Cabling Guide.

Figure 24 8SFF SAS/SATA drive configuration

4. From the configuration and cabling options, select the drive configuration of your server and cable the drives accordingly. The following uses the red-rectangle marked configuration in Figure 26 as an example.

¡ Processors—Number of processors in the server.

¡ Drive backplane slots—Slots for installing the drives. "0 to 7" indicates that the drives are installed in slots 0 to 7. You must install a drive backplane to provide data power and data channels for drives

¡ Card type—Type of the available cards. "Standard 8i(LSI)" indicates a standard 8i controller to control all SAS or SATA drives.

¡ PCIe slots—Available PCIe slots for installing the standard storage controller. "SLOT1-6" indicates PCIe slots 1 to 6.

¡ SAS/SATA data cables—SAS/SATA data cable code and cabling scheme.

¡ AUX signal cables—AUX signal cable code and cabling scheme.

¡ Power cords—Power cord code and cabling scheme.

¡ Remarks—Restrictions and guidelines.

Figure 25 8SFF drive configuration

Table 22 8SFF drive cabling scheme

Cable type	Cable code	Cabling method
SAS/SATA data cable	0404A1D0	Connects the SAS connector on the LSI storage controller to the x8 Mini-SAS-HD connector (SAS PORT 1) on the drive backplane.
AUX signal cable	0404A1D7 (MB AUX1 to BOX1)	Connects connector AUX1 on the system board to the AUX connector (AUX 1) on the drive backplane in BOX1.
Power cord	0404A1D1 (MB PWR1 to BOX1)	Connecting connector PWR1 on the system board to the power connector (PWR 1) on the drive backplane in BOX1.

Figure 26 Connecting the SAS/SATA data cable

Figure 27 Connecting the AUX signal cable

Figure 28 Connecting the power cord

Restrictions and guidelines

The drive cables include SAS/SATA cables, NVMe cables, power cables, and signal cables. The server supports multiple drives. This chapter takes the following typical drive configurations as examples to help users understand the wiring methods for drives. For other drive configurations, contact Technical Support.

· Front 8SFF (SATA/SAS) drive configuration

· Front 25SFF (17SATA/SAS+8Unibay) drive configuration

· Front 25SFF (17SATA/SAS+8SFF Unibay) + front 8SFF (8SATA/SAS) drive configuration

· Front 225SFF (17SATA/SAS+8SFF Unibay) drive configuration

· Front 25SFF (17SATA/SAS+8SFF UniBay) + rear 8E1.S (8*E1.S) drive configuration

Connecting power cords

Connecting power cords for front 8SFF drive backplanes

The cable connection methods are similar for a front 8SFF drive backplane and front 8SFF UniBay drive backplane.

Figure 29 Connecting power cords for front 8SFF drive backplanes

(1) Power cord that connects the front 8SFF drive backplane (PWR) and the system board (PWR1) in drive bay 1
(2) Power cord that connects the front 8SFF drive backplane (PWR) and the system board (PWR2) in drive bay 2
(3) Power cord that connects the front 8SFF drive backplane (PWR) and the system board (PWR3) in drive bay 3
(4) Power cord that connects the front 8SFF UniBay drive backplane (PWR) and the system board (PWR4) in drive bay 4
(5) Power cord that connects the front 8SFF UniBay drive backplane (PWR) and the system board (PWR5) in drive bay 5
(6) Power cord that connects the front 8SFF UniBay drive backplane (PWR) and the system board (PWR6) in drive bay 6

Connecting power cords for front 25SFF drive backplanes

Figure 30 Connecting power cords for front 25SFF drive backplanes

(1) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR1) at the upper layer
(2) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR2) at the upper layer
(3) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR3) at the upper layer
(4) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR4) at the lower layer
(5) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR5) at the lower layer
(6) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR6) at the lower layer

Connecting power cords for front 25SFF and rear 8E1.S drive backplanes

Figure 31 Connecting power cords for front 25SFF and rear 8E1.S drive backplanes

(1) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR1) at the upper layer
(2) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR2) at the upper layer
(3) Power cord that connects the front 25SFF drive backplane (PWR) and the system board (PWR3) at the upper layer
(4) Power cord that connects the rear 8E1.S drive backplane (PWR) and the system board (PWR7)

Connecting AUX signal cables

Connecting AUX signal cables for front 8SFF drive backplanes

The cable connection methods are similar for a front 8SFF drive backplane and front 8SFF UniBay drive backplane.

Figure 32 Connecting AUX signal cables for front 8SFF drive backplanes

(1) AUX signal cable that connects the front 8SFF drive backplane (AUX) and the system board (AUX1) in drive bay 1
(2) AUX signal cable that connects the front 8SFF drive backplane (AUX) and the system board (AUX2) in drive bay 2
(3) AUX signal cable that connects the front 8SFF drive backplane (AUX) and the system board (AUX3) in drive bay 3
(4) AUX signal cable that connects the front 8SFF UniBay drive backplane (AUX) and the system board (AUX4) in drive bay 4
(5) AUX signal cable that connects the front 8SFF UniBay drive backplane (AUX) and the system board (AUX5) in drive bay 5
(6) AUX signal cable that connects the front 8SFF UniBay drive backplane (AUX) and the system board (AUX6) in drive bay 6

Connecting AUX signal cables for front 25SFF drive backplanes

Figure 33 Connecting AUX signal cables for front 25SFF drive backplanes

(1) AUX signal cable that connects the front 25SFF drive backplane (AUX) and the system board (AUX1) at the upper layer
(2) AUX signal cable that connects the front 25SFF drive backplane (AUX) and the system board (AUX4) at the lower layer

Connecting AUX signal cables for front 25SFF and rear 8E1.S drive backplanes

Figure 34 Connecting AUX signal cables for front 25SFF and rear 8E1.S drive backplanes

(1) AUX signal cable that connects the front 25SFF drive backplane (AUX) and the system board (AUX1) at the upper layer
(2) AUX signal cable that connects the rear 8E1.S drive backplane (AUX) and the system board (AUX7)

Connecting data cables

Connecting SAS/SATA data cables

The SAS/SATA data cable connection methods are similar for an 8SFF drive backplane and 8SFF UniBay drive backplane.

Figure 35 Using a SAS/SATA data cable to connect the 8SFF drive backplane to the standard 8i controller

No.	Cable type	Product code	Cable description
1	SAS/SATA data cable	0404A1X0	Data cable that connects the front 8SFF drive backplane (SAS PORT) and the 8i controller (C0)

IMPORTANT:

· When configuring one or two processors, you can install the controller in slot 5 to slot 7. This section installs the controller in slot 5 as an example.

· When configuring four processors, you can install the controller in slot 1 to slot 7.

Figure 36 Using SAS/SATA data cables to connect two 8SFF drive backplanes to the standard 16i controller

No.	Cable type	Product code	Cable description
1	SAS/SATA data cable	0404A1X0	Data cable that connects the front 8SFF drive backplane (SAS PORT) and the 16i controller (C0) in drive bay 1
2	SAS/SATA data cable	0404A1X0	Data cable that connects the front 8SFF drive backplane (SAS PORT) and the 16i controller (C1) in drive bay 2

IMPORTANT:

· When configuring two processors, you can install the controller in slot 5 to slot 7. This section installs the controller in slot 5 as an example.

· When configuring four processors, you can install the controller in slot 1 to slot 7.

Figure 37 Using SAS/SATA data cables to connect the 8SFF drive backplane and 25SFF drive backplane to the standard 16i controller

(1) SAS/SATA data cable of the 8SFF drive backplane in drive bay 4
(2) SAS/SATA data cable of the 25SFF drive backplane at the upper layer

Figure 38 Using SAS/SATA data cables to connect two 25SFF drive backplanes to the standard 8i controller separately

(1) SAS/SATA data cable of the 25SFF UniBay drive backplane at the upper layer
(2) SAS/SATA data cable of the 25SFF UniBay drive backplane at the lower layer

Figure 39 Using a SAS/SATA data cable to connect the 25SFF drive backplane to an 8SFF drive backplane

Figure 40 Using a SAS/SATA data cable to connect the 25SFF drive backplane to the standard 8i controller

Connecting NVMe data cables

Figure 41 Using NVMe data cables to connect the 8SFF UniBay drive backplane to the system board

No.	Cable type	Product code	Description
1	NVMe data cable	0404A1QN	Data cable that connects the front 8SFF drive backplane (NVMe B3/B4) and system board (C1-P3A) in drive bay 6
2	NVMe data cable	0404A1QN	Data cable that connects the front 8SFF drive backplane (NVMe B1/B2) and system board (C1-P3C) in drive bay 6
3	NVMe data cable	0404A1QN	Data cable that connects the front 8SFF drive backplane (NVMe A3/A4) and system board (C1-P4C) in drive bay 6
4	NVMe data cable	0404A1QN	Data cable that connects the front 8SFF drive backplane (NVMe A1/A2) and system board (C1-P4A) in drive bay 6

Figure 42 Using NVMe data cables to connect the 25SFF UniBay drive backplane to the system board

No.	Cable type	Product code	Description
1	NVMe data cable	0404A1QJ	Data cable that connects the front 25SFF drive backplane (NVMe 4) and system board (C1-P3A) at the upper layer
2	NVMe data cable	0404A1QJ	Data cable that connects the front 25SFF drive backplane (NVMe 3) and system board (C1-P3C) at the upper layer
3	NVMe data cable	0404A1QJ	Data cable that connects the front 25SFF drive backplane (NVMe 2) and system board (C1-P4C) at the upper layer
4	NVMe data cable	0404A1QJ	Data cable that connects the front 25SFF drive backplane (NVMe 1) and system board (C1-P4A) at the upper layer

Figure 43 Using NVMe data cables to connect the front 25SFF and rear 8E1.S drive backplanes to the processor mezzanine board

No.	Cable type	Product code	Description
1	NVMe data cable	0404A1QQ	Data cable that connects the rear 8E1.S drive backplane (EDSFF-B3/B4) and mezzanine board (C4-P2C)
2	NVMe data cable	0404A1QQ	Data cable that connects the rear 8E1.S drive backplane (EDSFF-B1/B2) and mezzanine board (C4-P2A)
3	NVMe data cable	0404A1QQ	Data cable that connects the rear 8E1.S drive backplane (EDSFF-A3/A4) and mezzanine board (C4-P1A)
4	NVMe data cable	0404A1QQ	Data cable that connects the rear 8E1.S drive backplane (EDSFF-A1/A2) and mezzanine board (C4-P1C)
5	SATA/SAS	0404A1X0	Data cable that connects the front 25SFF drive backplane (SAS PORT) and 8i controller (C0) at the upper layer

Connecting supercapacitor extension cables

Figure 44 Connecting supercapacitor extension cables

NOTE:

You can install a supercapacitor in any slot of the air baffle.

Connecting the GPU power cord

Figure 45 Connecting the GPU power cord

Connecting the riser card cables

Some riser cards can provide additional PCIe links for the slots on the cards by connecting to the system board and mezzanine board. This chapter introduces the cable connection methods of these riser cards. For more information about the slots, see "Riser cards."

RC-7FHHL-4U-G6

You can install the RC-7FHHL-4U-G6 riser card on either PCIe riser connector 1 or slot 2 on the system board. The cable connection methods vary by riser connector. For more information, see Table 24. For more information about PCIe riser connectors, see "Rear panel."

Figure 46 Connecting PCIe signal cables for riser connector 1

Figure 47 Connecting PCIe signal cables for riser connector 2

Table 23 Cable connection

PCIe riser connector	Product code	Cable No.	Ports on riser card	Ports on system board
Riser1	0404A1QN	1	PCIe PORT A1	MCIO connector C3-P0A on mezzanine board
	0404A1QN	2	PCIe PORT A2	MCIO connector C3-P0C on mezzanine board
	0404A1X1	3	PCIe PORT B1	MCIO connector C3-P1A on mezzanine board
	0404A1X1	4	PCIe PORT B2	MCIO connector C3-P1C on mezzanine board
	0404A1QN	5	PCIe PORT C1	MCIO connector C1-P1A on system board
	0404A1QN	6	PCIe PORT C2	MCIO connector C1-P1C on system board
Riser2	0404A1QH	1	PCIe PORT A1	MCIO connector C3-P2A on mezzanine board
	0404A1QH	2	PCIe PORT A2	MCIO connector C3-P2C on mezzanine board
	0404A1Q1	3	PCIe PORT B1	MCIO connector C4-P0A on mezzanine board
	0404A1Q1	4	PCIe PORT B2	MCIO connector C4-P0C on mezzanine board
	0404A1QH	5	PCIe PORT C1	MCIO connector C2-P2A on system board
	0404A1QH	6	PCIe PORT C2	MCIO connector C2-P2C on system board

RC-3FHHL/1FHFL-4U-G6

You can install the RC-3FHHL/1FHFL-4U-G6 riser card on either riser connector 1 or 2 on the system board. The cable connection methods varies by riser connector location. For more information, see Table 25. For more information about PCIe riser connectors, see "Rear panel."

Figure 48 Connecting PCIe signal cables for riser connector 1

Figure 49 Connecting PCIe signal cables for riser connector 2

Table 24 Cable connection

PCIe riser connector	Product code	Cable No.	Ports on riser card	Ports on system board
Riser2	0404A1QJ	1	PCIe PORT A1	MCIO connector C3-P0A on mezzanine board
	0404A1QN	2	PCIe PORT A2	MCIO connector C3-P0C on mezzanine board
	0404A1X1	3	PCIe PORT B1	MCIO connector C3-P1C(X16-A) on mezzanine board
	0404A1X1	4	PCIe PORT B2	MCIO connector C3-P1A(X16-C) on mezzanine board
	0404A1QJ	5	PCIe PORT C1	MCIO connector C1-P1A on system board
	0404A1QJ	6	PCIe PORT C2	MCIO connector C1-P1C on system board
	0404A0UC	7	TBD	GPU PWR1
	0404A0UC	8	TBD	GPU PWR2
Riser2	0404A1QJ	1	PCIe PORT A1	MCIO connector C3-P2A on mezzanine board
	0404A1QN	2	PCIe PORT A2	MCIO connector C3-P2C on mezzanine board
	0404A1X1	3	PCIe PORT B1	MCIO connector C4-P0A on mezzanine board
	0404A1X1	4	PCIe PORT B2	MCIO connector C4-P0C on mezzanine board
	0404A1QJ	5	PCIe PORT C1	MCIO connector C2-P2A on system board
	0404A1QJ	6	PCIe PORT C2	MCIO connector C2-P2C on system board
	0404A0UC	7	TBD	GPU PWR1
	0404A0UC	8	TBD	GPU PWR2

RC-2FHHL/2FHFL-4U-G6

You can install the RC-2FHHL/2FHFL-4U-G6 riser card on PCIe riser connector slot 1 or slot 2 on the system board. The cable connection methods vary by riser connector. For more information, see Table 26. For more information about PCIe riser connectors, see "Rear panel.".

Figure 50 Connecting PCIe signal cables for riser connector 1

Figure 51 Connecting PCIe signal cables for riser connector 2

Table 25 Cable connection

PCIe riser connector	Product code	Cable No.	Ports on riser card	Ports on system board
Riser1	0404A1QJ	1	PCIe PORT A1	MCIO connector C3-P1C(X16-A) on mezzanine board
	0404A1QN	2	PCIe PORT A2	MCIO connector C3-P1A(X16-C) on mezzanine board
	0404A1QJ	3	PCIe PORT B1	MCIO connector C1-P1A on system board
	0404A1QJ	4	PCIe PORT B2	MCIO connector C1-P1C on system board
	0404A0UC	5	TBD	GPU PWR1
	0404A0UC	6	TBD	GPU PWR2
Riser2	0404A1QJ	1	PCIe PORT A1	MCIO connector C4-P0A on mezzanine board
	0404A1QN	2	PCIe PORT A2	MCIO connector C4-P0C on mezzanine board
	0404A1QJ	3	PCIe PORT B1	MCIO connector C2-P2A on system board
	0404A1QJ	4	PCIe PORT B2	MCIO connector C2-P2C on system board
	0404A0UC	5	TBD	GPU PWR1
	0404A0UC	6	TBD	GPU PWR2

RC-4HHHL-R3-4U-G6

You can install the RC-4HHHL-R3-4U-G6 riser card on PCIe riser connector 3 on the system board. For more information, see Table 27. For more information about PCIe riser connectors, see "Rear panel."

Figure 52 Connecting PCIe signal cables for riser card

Table 26 Cable connection

PCIe riser connector	Product code	Cable No.	Ports on riser card	Ports on system board
Riser3	-	1	PCIe X8 SLOT1	MCIO connector C4-P1A on mezzanine board
	-	2	PCIe X8 SLOT2	MCIO connector C4-P1C on mezzanine board
	-	3	PCIe X8 SLOT3	MCIO connector C4-P2A on mezzanine board
	-	4	PCIe X8 SLOT4	MCIO connector C4-P2C on mezzanine board
	0404A1QA	5	AUX	RISER3 AUX
	0404A1QF	6	PWR	RISER&GPU POWER

RC-1FHHL/1FHFL-R3-4U-G6

You can install the RC-1FHHL/1FHFL-R3-4U-G6 riser card on PCIe riser connector 3 on the system board. For more information, see Table 28. For more information about PCIe riser connectors, see "Rear panel."

Figure 53 Connecting PCIe signal cables for riser card

Table 27 Cable connection

PCIe riser connector	Product code	Cable No.	Ports on riser card	Ports on system board
Riser3	-	1	PCIe X16 SLOT2	MCIO connector C4-P1C(X16-A) on mezzanine board
	-	2	PCIe X16 SLOT2	MCIO connector C4-P1A(X16-C) on mezzanine board
	-	3	PCIe X16 SLOT4	MCIO connector C4-P2A on mezzanine board
	-	4	PCIe X16 SLOT4	MCIO connector C4-P2C on mezzanine board
	0404A1QA	5	AUX	RISER3 AUX
	0404A1QF	6	PWR	RISER&GPU POWER
	0404A1QF	7	TBD	RISER&GPU POWER

RC-2FHFL-R3-4U-G6

You can install the RC-2FHFL-R3-4U-G6 riser card on PCIe riser connector 3 on the system board. For more information, see Table 29. For more information about PCIe riser connectors, see "Rear panel."

Figure 54 Connecting PCIe signal cables for riser card

Table 28 Cable connection

PCIe riser connector	Product code	Cable No.	Ports on riser card	Ports on system board
Riser3	-	1	PCIe X16 SLOT 2	MCIO connector C4-P1C(X16-A) on mezzanine board
	-	2	PCIe X16 SLOT 2	MCIO connector C4-P1A(X16-C) on mezzanine board
	-	3	PCIe X16 SLOT4	MCIO connector C4-P2A on mezzanine board
	-	4	PCIe X16 SLOT4	MCIO connector C4-P2C on mezzanine board
	0404A1QA	5	AUX	RISER3 AUX
	0404A1QE	6	PWR	PWR7
	0404A1QF	7	TBD	RISER&GPU POWER
	0404A1QF	8	TBD	RISER&GPU POWER

RC-4HHHL-R4-4U-G6

You can install the RC-4HHHL-R4-4U-G6 riser card on PCIe riser connector 4 on the system board. For more information, see Table 30. For more information about PCIe riser connectors, see "Rear panel."

Figure 55 Connecting PCIe signal cables for riser card

Table 29 Cable connection

PCIe riser connector	Product code	Cable No.	Ports on riser card	Ports on system board
Riser3	-	1	PCIe X8 SLOT1	MCIO connector C2-P3A on system board
	-	2	PCIe X8 SLOT2	MCIO connector C2-P3C on system board
	-	3	PCIe X8 SLOT3	MCIO connector C2-P4A on system board
	-	4	PCIe X8 SLOT4	MCIO connector C2-P4C on system board
	0404A1QA	5	AUX	RISER4 AUX
	0404A1QF	6	PWR	RISER&GPU POWER

Connecting the front SATA/NVMe M.2 SSD expander module cable

Use a cable to connect the front SATA/NVMe M.2 SSD expander module to an M.2 connector on the system board.

Figure 56 Connecting the SATA M.2 SSD cable

Connecting the LCD smart management module cable

Figure 57 Connecting the LCD smart management module cable

Connecting the air inlet temperature sensor cable

Figure 58 Connecting the air inlet temperature sensor cable

Connecting cables to chassis ears

Figure 59 Connecting cables to chassis ears

(1) Left chassis ear cable	(2) Right chassis ear cable

Connecting the power expander module cable

Figure 60 Connecting the power expander module cable

Maintenance

The following information describes the guidelines and tasks for daily server maintenance.

Guidelines

· Keep the equipment room clean and tidy. Remove unnecessary devices and objects from the equipment room.

· Make sure the temperature and humidity in the equipment room meet the server operating requirements.

· Regularly check the server from HDM for operating health issues.

· Keep the operating system and software up to date as required.

· Make a reliable backup plan:

¡ Back up data regularly.

¡ If data operations on the server are frequent, back up data as needed in shorter intervals than the regular backup interval.

¡ Check the backup data regularly for data corruption.

· Stock spare components on site in case replacements are needed. After a spare component is used, prepare a new one.

· Keep the network topology up to date to facilitate network troubleshooting.

Maintenance tools

The following are major tools for server maintenance:

· Temperature humidity meter—Monitors the operating environment of the server.

· HDM and UniSystem—Monitors the operating status of the server.

Maintenance tasks

Guidelines

· Do not use excessive force when connecting or disconnecting cables.

· Do not twist or stretch the cables.

· Organize the cables appropriately. For more information, see "Cabling guidelines."

Checklist

· The cable type is correct.

· The cables are correctly and firmly connected and the cable length is appropriate.

· The cables are in good condition and are not twisted or corroded at the connection point.

Technical support

If you encounter any complicated problems during daily maintenance or troubleshooting, contact H3C Support.

Before contacting H3C Support, collect the following server information to facilitate troubleshooting:

· Log and sensor information:

· Log information:

¡ Event logs.

¡ HDM audit logs and update logs.

¡ SDS logs.

¡ Diagnostics logs.

For information about how to collect log information, see HDM and iFIST online help.

· Sensor information.

To collect the sensor information, you must log in to the HDM Web interface. For more information, see HDM online help.

· Product serial number.

· Product model and name.

· Snapshots of error messages and descriptions.

· Hardware change history, including installation, replacement, insertion, and removal of hardware.

· Third-party software installed on the server.

· Operating system type and version.

H3C UniServer R6900 G6 Server User Guide-6W100

Safety information

Preventing electrostatic discharge

Grounding methods to prevent electrostatic discharge

About this task

Procedure

About this task

Procedure

Guidelines

Procedure

Securing cables to cable management brackets

Securing cables to slide rails by using cable straps

Powering on the server by pressing the power on/standby button

Powering on the server from the HDM Web interface

Powering on the server from the remote console interface

Configuring automatic power-on

Powering off the server from its operating system

Powering off the server by pressing the power on/standby button

Powering off the server forcedly by pressing the power on/standby button

Powering off the server from the HDM Web interface

Powering off the server from the remote console interface

Processor installation guidelines

Restrictions and guidelines

DIMM and processor compatibility

Installation guidelines of installing only DDR5 DIMMs

Guidelines for installing front SATA/NVMe M.2 SSDs

Guidelines for installing rear NVMe M.2 SSDs

Restrictions and guidelines

About storage controllers

Embedded VROC controller

Standard storage controllers

Power fail safeguard module

OCP network adapters

Standard PCIe network adapters

About GPU modules

Installation guidelines