H3C UniServer R4900 G6 Ultra User manual

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H3C UniServer R4900 G6 Ultra
Technology White Paper
Copyright © 2023 New H3C Technologies Co., Ltd. All rights reserved.
No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New
H3C Technologies Co., Ltd.
Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are
the property of their respective owners.
The information in this document is subject to change without notice.

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Contents
Overview ························································································0
Product features ························································································································0
Highly efficient dedicated computing power···············································································0
Rapid I/O evolution ··············································································································1
Multi-layered security protection ·····························································································1
Server topology ·························································································································2
Server specifications·········································································0
Components ·····························································································································0
Front panel ·······························································································································2
Front panel view of the server ································································································2
LEDs and buttons················································································································5
Ports·································································································································6
Rear panel ······························································································································· 7
Rear panel view ··················································································································7
LEDs ································································································································8
Ports·································································································································9
System board·························································································································· 10
System board components ·································································································· 10
System maintenance switch ································································································ 12
DIMM slots······················································································································· 13
HDDs and SSDs ······················································································································ 14
Drive numbering················································································································ 14
Drive LEDs ······················································································································ 15
Drive backplanes ····················································································································· 17
Front 8SFF SAS/SATA drive backplane ················································································· 17
Front 8SFF UniBay drive backplane ······················································································ 18
Front 8LFF SAS/SATA drive backplane·················································································· 18
Front 12LFF SAS/SATA drive backplane ················································································ 19
Front 12LFF 8SAS/SATA+4UniBay drive backplane ································································· 19
Front 12LFF4SAS/SATA+8UniBay drive backplane ·································································· 20
Front 12LFF UniBay drive backplane ····················································································· 20
Front 25SFF 17SAS/SATA+8UniBay drive backplane ······························································· 21
Front 16E1.S drive backplane ······························································································ 22
Mid 4LFF SAS/SATA backplane ··························································································· 23
Mid 8SFF UniBay drive backplane ························································································ 24
Rear 2LFF SAS/SATA drive backplane ·················································································· 24
Rear 4LFF SAS/SATA drive backplane ·················································································· 25
Rear 2SFF SAS/SATA drive backplane·················································································· 25
Rear 2SFF UniBay drive backplane······················································································· 25
Rear 4SFF SAS/SATA drive backplane·················································································· 26
Rear 4SFF UniBay drive backplane······················································································· 26
Rear 2UniBay drive backplane (compatible with OCP adapter) ··················································· 27
Riser cards ····························································································································· 27
RC-3FHFL-2U-G6 ············································································································· 28
RC-3FHHL-2U-G6 ············································································································· 30
RC-FHHL-2U-G6··············································································································· 31
RC-1FHFL-R3-2U-G6 ········································································································ 32
RC-2HHHL-R3-2U-G6········································································································ 33
RC-2FHFL-R3-2U-G6 ········································································································ 34
RC-2HHHL-R4-2U-G6········································································································ 34
RC-5HHHL-R5-2U-G5········································································································ 35
PCA-R4900-4GPU-G6 ······································································································· 36
OCP adapter··························································································································· 37
LCD smart management module ································································································· 38
Fan modules··························································································································· 38
PCIe slot ································································································································ 39

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B/D/F information····················································································································· 40
Installation guidelines······································································41
Processors ····························································································································· 41
Installation guidelines ········································································································· 41
Processor model suffixes ···································································································· 41
DIMMs··································································································································· 42
SAS/SATA drives····················································································································· 42
NVMe drives ··························································································································· 42
M.2 SSDs······························································································································· 43
Server management module································································································ 44
Serial & DSD module ········································································································· 45
Riser cards and PCIe modules···································································································· 45
Riser card and PCIe module compatibility··············································································· 46
Storage controllers and power fail safeguard modules ····································································· 51
Storage controllers ············································································································ 51
Powerfail safeguard modules ······························································································· 51
Installation guidelines ········································································································· 52
NVMe VROC modules········································································································ 53
Network adapters ·············································································································· 53
GPU modules ························································································································· 53
Power supplies························································································································ 54
Fan modules··························································································································· 55
Product specifications ·······································································0
Technical specifications···············································································································0
Operating environment requirements ·····························································································1
Component compatibility····································································0
Processor································································································································· 0
DIMMs·····································································································································0
About DIMMs ·····················································································································0
DRAM DIMM rank classification label ······················································································0
Guidelines ·························································································································1
Storage····································································································································3
I/O expansion····························································································································4
Supported operating systems and software ·····················································································4
Intelligent management ·····································································6
Maintenance ···················································································8
Certifications ···················································································0

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Overview
H3C UniServer R4900 G6 Ultra servers are 2U dual-processor servers independently developed by
H3C based on the new-generation Eagle Stream platform of Intel. The servers can be widely used in
general computing scenarios, while focusing on high-performance computing, artificial intelligence,
cloud desktop and other scenarios. They are suitable for typical applications in industries such as
Internet, service providers, finance, enterprises, and government. The servers have the
characteristics of high computing performance, large storage capacity, low power consumption,
strong scalability, high reliability, and ease of management and deployment.
Product features
Highly efficient dedicated computing power
•Supports up to 120 CPU cores
•Supports up to 4 dual-width GPU modules

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•Supports up to 14 single-width GPU modules
•Supports various computing units such as XPU
Rapid I/O evolution
•Supports up to 32 new DDR5 memory slots
•Memory speed up to 4800 MT/s
•Supports up to 36 U.2 NVMe solid-state drives
•Supports up to 36 E3.S solid-state drives
•Supports up to 32 E1.S solid-state drives
•Supports up to 14 PCIe standard slots
•Supports 2 onboard OCP 3.0 slots
Multi-layered security protection
•Supports chassis intrusion detection function
•Supports PFR3.0
•Supports SGX 2.0
•Supports Trusted Platform Module (TCM1.0/TPM2.0)
•HDM two-factor authentication management

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Server topology
•The server supports two Intel® Xeon® scalable processors of the fourth generation, four
groups of UPIs, and 32 DDR5 DIMMs.
•The server uses PCIe bus to connect to PCIe riser cards to provide PCIe slots of different
specifications.
•The servers support embedded OCP 3.0 network adapters for flexible configuration of PCIe
links.
•The server uses the AST2600 management chip to support management ports such as VGA
connectors and management network ports.

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Server specifications
Components
Figure 1 Server components
Item
Description
(1) Chassis access panel N/A
(2) Mid drive cage Installed in the server to accommodate drives.
(3
) Standard PCIe network
adapter Installed in a standard PCIe slot to provide network ports.
(4) System battery Supplies power to the system clock to ensure system time correctness.
(5) Storage controller
Provides RAID capability to SAS/SATA drives, including RAID
configuration and RAID scale-
up. It supports online upgrade of the
controller firmware and remote configuration.
(6) NVMe VROC module Works with Intel VMD to provide RAID capability for the
server to
virtualize storage resources of NVMe drives.
(7) GPU module Provides computing services such as graphics processing and AI.
(8) Riser card Provides PCIe slots.
(9) OCP adapter Provides one slot for installing an OCP network adapter and two slots for
installing drives at the server rear.
(10) Serial & DSD module Provides one serial port and two SD card slots.
(11) Memory
Stores computing data and data exchanged with external storage

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Item
Description
temporarily.
(12) Rear drive backplane Provides power and data channels for drives at the server rear.
(13) Rear drive cage Installed at the server rear to accommodate drives.
(14) Server management
module Provides I/O connectors and HDM out-of-band management features.
(15) OCP network adapter Network adapter installed onto the OCP network adapter connector on
the system board.
(16) Riser card blank Installed on an empty PCIe riser connector to ensure good ventilation.
(17) Power supply Supplies power to the server. The power supplies support hot swapping
and 1+1 redundancy.
(18) Chassis N/A
(19) Chassis ears
Attach the server to the rack. The right ear is integrated with the front I/O
component, and the left ear is integrated with VGA connector, dedicated
management connector, and USB 3.0 connector.
(20) Front drive backplane Provides power and data channels for drives at the server front. This
document installs an 8SFF front drive backplane as an example.
(21) LCD smart management
module
Displays basic server information, operating status, and fault information.
Together with HDM event logs, users can fast locate faulty components
and troubleshoot the server, ensuring server operation.
(22) Drive Provides data storage space. Drives support hot swapping.
(23)
SATA M.2 SSD expander
module Provides M.2 SSD slots.
(24) SATA M.2 SSD Provides data storage space for the server.
(25) Encryption module Provides encryption services for the server to enhance data security.
(26) System board
One of the most important parts of a
server, on which multiple
components are installed, such as processor, memory, and fan. It is
integrated with basic server components, including the BIOS chip and
PCIe connectors.
(27) Processor socket cover Installed over an empty processor socket to protect pins in the socket.
(28) Fan cage Accommodates fan modules.
(29) Chassis open-alarm
module
Detects if the access panel is removed. The detection result can be
displayed from the HDM Web interface.
(30) Air baffle Provides ventilation aisles for processor heatsinks and memory modules
and provides support for the supercapacitor.
(31) Fan Helps server ventilation. Fans support hot swapping and N+1
redundancy.
(32) Processor Integrates memory and PCIe controllers to
provide data processing
capabilities for the server.
(33) Processor retaining bracket Attaches a processor to the heatsink.
(34) Supercapacitor holder Secures a supercapacitor in the chassis.
(35) Supercapacitor
Supplies power to the flash card on the powerfail safeguard module,
which enables the storage controller to back up data to the flash card for
protection when power outage occurs.
(36) Mid GPU module
Installed in the server to expand GPU modules to meet graphics
computing and AI processing requirements.

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Item
Description
(37) CPU heatsink Cools the processor.
(38) CPU liquid-cooled module Cools the processor.
Front panel
Front panel view of the server
Figure 2 8LFF front panel
Table 1 8LFF front panel description
Item
Description
1 USB 3.0 connector
2 Drive or LCD mart management module (optional)
3 Serial label pull tab
4 Dedicated management connector
5 USB 2.0 connector
6 VGA connector
Figure 3 12LFF front panel
Table 2 12LFF front panel description
Item
Description
1 12LFF UniBay drives*
2 USB 3.0 connector

3
Item
Description
3 Drive or LCD mart management module (optional)
4 Serial label pull tab
5 Dedicated management connector
6 USB 2.0 connector
7 VGA connector
*: Drive types supported by the server vary by drive backplane configuration. For more information, see
"Drive backplanes."
Figure 4 8SFF front panel
Table 3 8SFF front panel description
Item
Description
1 Bay 1: 8SFF drives (optional)*
2 Bay 2: 8SFF drives (optional)*
3 Bay 3: 8SFF drives (optional)*
4 USB 3.0 connector
5 LCD smart management module (optional)
6 Serial label pull tab
7 Dedicated management connector
8 USB 2.0 connector
9
VGA connector
*: Drive types supported by the server vary by drive backplane configuration. For more information, see
"Drive backplanes."

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Figure 5 25SFF front panel
Table 4 25SFF front panel description
Item
Description
1 25SFF drives*
2 USB 3.0 connector
3 Drive or LCD mart management module (optional)
4 Serial label pull tab
5 Dedicated management connector
6
USB 2.0 connector
7 VGA connector
*: Drive types supported by the server vary by drive backplane configuration. For more information, see
"Drive backplanes."
Figure 6 32E1.S front panel
Table 5 32E1.S front panel description
Item
Description
1 USB 3.0 connector
2 32E1.S drives
3 Serial label pull tab
4
Dedicated management connector
5 USB 2.0 connector
6 VGA connector

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LEDs and buttons
Front panel LEDs and buttons
Figure 7 Front panel LEDs and buttons
Table 6 LEDs and buttons on the front panel
Button/LED
Status
Power on/standby button
and system power LED
•Steady green—The system has started.
•Flashing green (1 Hz)—The system is starting.
•Steady amber—The system is in standby state.
•Off—No power is present. Possible reasons:
No power source is connected.
No power supplies are present.
The installed power supplies are faulty.
The system power cords are not connected correctly.
OCP 3.0
network adapter
Ethernet port LED
•Steady green—A link is present on a port of an OCP 3.0 network
adapter.
•Flashing green (1 Hz)—A port on an OCP 3.0 network adapter is
receiving or sending data.
•Off—No link is present on any port of either OCP 3.0 network adapter.
NOTE:
The server supports a maximum of three OCP3.0 network adapters.
Health LED
•Steady green—The system is operating correctly or a minor alarm is
present.
•Flashing green (4 Hz)—HDM is initializing.
•Flashing amber (1 Hz)—A major alarm is present.
•Flashing red (1 Hz)—A critical alarm is present.
If a system alarm is present, log in to HDM to obtain more information about
the system running status.
UID button LED
•Steady blue—UID LED is activated. The UID LED can be activated by
using the following methods:
Press the UID button LED.
Activate the UID LED from HDM.
•Flashing blue:
1 Hz—
The firmware is being upgraded or the system is being
managed from HDM. Do not power off the server.
4 Hz—HDM is restarting. To restart HDM, press the UID button LED
for eight seconds.

6
Button/LED
Status
•Off—UID LED is not activated.
Security bezel light
The security bezel provides hardened security and uses effect light to visualize operation and health
status to help inspection and fault location. The default effect light is as shown in Figure 8.
Figure 8 Security bezel
Table 7 Security bezel effect light
System status
Light status
Standby Steady white: The system is in standby state.
Startup
•Beads turn on white from middle in turn—POST progress.
•Beads turn on white from middle three times—POST has finished.
Running
•Breathing white (gradient at 0.2 Hz)—Normal state, indicating the system load
by the percentage of beads turning on from the middle to the two sides of the
security bezel.
No load—Less than 10%.
Light load—10% to 50%.
Middle load—50% to 80%.
Heavy load—More than 80%.
•Breathing white (gradient at 1 Hz )—A pre-alarm is present.
•Flashing amber (1 Hz)—A major alarm is present.
•Flashing red (1 Hz)—A critical alarm is present.
UID
•All beads flash white (1 Hz)—The firmware is being upgraded or the system is
being managed from HDM. Do not power off the server.
•
Some beads flash white (1 Hz)—HDM is restarting.
Ports
Table 8 Ports on the front panel
Port
Type
Description
VGA connector DB-15 Connects a display terminal, such as a monitor or KVM device.
USB connector USB 2.0/3.0
Connects the following devices:
•USB flash drive.
•USB keyboard or mouse.
•USB optical drive for operating system installation.
Dedicated
management
Type-C Connects a Type-C to USB adapter cable, which connects to a
USB Wi-Fi adapter.

7
Port
Type
Description
connector
NOTE:
The server supports only Xiaomi USB Wi-Fi adapters.
Rear panel
Rear panel view
Figure 9 Rear panel components
Table 9 Rear panel description
Item
Description
1 PCIe riser bay 1: PCIe slots 1 through 3
2 PCIe riser bay 2: PCIe slots 4 through 6
3 PCIe riser bay 3: PCIe slots 7 and 8
4 PCIe riser bay 4: PCIe slots 9 and 10
5
Power supply 2
6 Power supply 1
7 OCP 3.0 network adapter/Serial & DSD module (in slot 17) (optional)
8 VGA connector
9 Two USB 3.0 connectors
10 HDM dedicated network port (1Gbps, RJ-45, default IP address 192.168.1.2/24)
11 OCP 3.0 network adapter (in slot 16) (optional)
For more information about the serial & DSD module, see "Serial & DSD module."

8
Figure 10 Rear panel components (with liquid-cooled module installed)
Table 10 Rear panel description (with liquid-cooled module installed)
Item
Description
1 PCIe riser bay 1: PCIe slots 1 through 3
2 PCIe riser bay 2: PCIe slots 4 through 6
3
Liquid inlet (blue) and outlet (red)
4 PCIe riser bay 4: PCIe slots 9 and 10
5 Power supply 2
6 Power supply 1
7 OCP 3.0 network adapter or serial & DSD module (in slot 17) (optional)
8 VGA connector
9 Two USB 3.0 connectors
10
HDM dedicated network port (1Gbps, RJ-45, default IP address 192.168.1.2/24)
11 OCP 3.0 network adapter (in slot 16) (optional)
LEDs
Figure 11 Rear panel LEDs
(1) Power supply LED for power supply 2
(2) Power supply LED for power supply 1
(3) Activity LED of the Ethernet port
(4) Link LED of the Ethernet port
(5) UID LED

9
Table 11 LEDs on the rear panel
LED
Status
Power supply LED
•Steady green—The power supply is operating correctly.
•Flashing green (1 Hz)—Power is being input correctly but the system
is not powered on.
•Flashing green (0.33 Hz)—The power supply is in standby state and
does not output power.
•Flashing green (2 Hz)—The power supply is updating its firmware.
•Steady amber—Either of the following conditions exists:
The power supply is faulty.
The power supply does not have power input, but another power
supply has correct power input.
•Flashing amber (1 Hz)—An alarm has occurred on the power supply.
•Off—No power supplies have power input, which can be caused by an
incorrect power cord connection or power source shutdown.
Activity LED of the Ethernet
port
•Flashing green (1 Hz)—The port is receiving or sending data.
•
Off
—The port is not receiving or sending data.
Link LED of the Ethernet port
•Steady green—A link is present on the port.
•Off—No link is present on the port.
UID LED
•Steady blue—UID LED is activated. The UID LED can be activated by
using the following methods:
Press the UID button LED.
Enable UID LED from HDM.
•Flashing blue:
1 Hz—The firmware is being upgraded
or the system is being
managed from HDM. Do not power off the server.
4 Hz—HDM is restarting. To restart HDM, press the UID button LED
for 8 seconds.
•Off—UID LED is not activated.
Ports
Table 12 Ports on the rear panel
Port
Type
Description
VGA connector DB-15 Connects a display terminal, such as a monitor or
KVM device.
BIOS serial port DB-9
The BIOS serial port is used for the following
purposes:
•Log in to the server when the remote network
connection to the server has failed.
•Establish a GSM modem or
encryption lock
connection.
NOTE:
The serial port is on the serial & DSD module. For
more information, see "Serial & DSD module."
USB connector USB 3.0
Connects the following devices:
•USB flash drive.
•USB keyboard or mouse.
•
USB optical drive for operating system
installation.

10
Port
Type
Description
HDM dedicated
network port RJ-45 Establishes a network connection to manage HDM
from its Web interface.
Power receptacle Standard single-phase Connects the power supply to the power source.
System board
System board components
Figure 12 System board components
Table 13 System board components
No.
Description
Mark
1 PCIe riser connector 3 (for processor 2) RISER3 PCIe X16

11
No.
Description
Mark
2 PCIe riser connector 2 (for processor 2) RISER2 PCIe X16
3 Fan connector 2 for the OCP 3.0 network adapter -
4 OCP 3.0 network adapter connector
2/Serial & DSD
module connector OCP2&DSD&UART CARD
5 PCIe riser connector 1 (for processor 1) RISER1 PCIe X16
6 Server management module slot BMC
7 Fan connector 1 for the OCP 3.0 network adapter OCP1 FAN
8 OCP 3.0 network adapter connector 1 OCP1
9 SlimSAS connector 3 (x4 SATA) SATA PORT3
10 AUX connector 9 for mid drive backplane AUX9
11 Mid drive backplane/Riser card AUX connector 7 AUX7
12 SlimSAS connector 2 (x4 SATA) SATA PORT2
13 SlimSAS connector 1 (x4 SATA or M.2 SSD) M.2&SATA PORT1
14 Front I/O connector RIGHT EAR
15 M.2 SSD AUX connector M.2 AUX
16
Fan connector 4
J245
17 Liquid Leakage Detection module connector LEAKDET
18 LCD smart management module connector DIAG LCD
19 MCIO connector C1-P4A (for processor 1) C1-P4A
20 MCIO connector C1-P4C (for processor 1) C1-P4C
21 Fan connector 3 J104
22 MCIO connector C1-P3C (for processor 1) C1-P3C
23 MCIO connector C1-P3A (for processor 1) C1-P3A
24 Power connector 3 for front drive backplane PWR3
25 Power connector 2 for front drive backplane PWR2
26 Connector for the thermal sensor module at the air inlet -
27 Power connector 1 for front drive backplane PWR1
28 Fan connector 2 J94
29 MCIO connector C2-P4A (for processor 2) C2-P4A
30 AUX connector 3 for front drive backplane AUX3
31 MCIO connector C2-P4C (for processor 2) C2-P4C
32 MCIO connector C2-P3C (for processor 2) C2-P3C
33 Fan connector 1 J96
34 AUX connector 2 for front drive backplane AUX2
35 AUX connector 1 for front drive backplane AUX1
36
MCIO connector C2-P3A (for processor 2)
C2-P3A
37 Chassis-open alarm module connector INTRUDER

12
No.
Description
Mark
38 Mid drive backplane/Riser card power connector 6 PWR6
39 Front VGA and USB 2.0 connector LEFT EAR
40 Power connector 4 for rear drive backplane PWR4
41 Power connector 5 for rear drive backplane PWR5
42 MCIO connector C2-P2C (for processor 2) C2-P2C
43
AUX connector 5 for rear drive backplane
AUX5
44 MCIO connector C2-P2A (for processor 2) C2-P2A
45 AUX connector 6 for mid drive backplane AUX6
46 AUX connector 4 for rear drive backplane AUX4
47 Riser card AUX connector 8 AUX8
48 NVMe VROC module connector NVMe RAID KEY
49 Embedded USB 2.0 connector INTERNAL USB2.0
50 TPM/TCM connector TPM
51 System battery -
52 MCIO connector C1-P2C (for processor 1) C1-P2C
53 MCIO connector C1-P2A (for processor 1) C1-P2A
X System maintenance switch MAINTENANCE SW
System maintenance switch
Figure 13 shows the system maintenance switch. Table 14 describes how to use the maintenance
switch.
Figure 13 System maintenance switch
Table 14 System maintenance switch description
Item
Description
Remarks
1 •Off (default)—
HDM login requires the
For security purposes, turn off the switch after

13
Item
Description
Remarks
username and password of a valid HDM
user account.
•On—
HDM login requires the default
username and password.
you complete tasks with the default username
and password as a best practice.
5
•Off (default)—Normal server startup.
•On—Restores the default BIOS settings.
To restore the default BIOS settings, turn on
and then turn off the switch. The server starts
up with the default BIOS settings at the next
startup.
CAUTION:
The server cannot start up when the switch is
turned on. To avoid service data loss, stop
running services and power off the server
before turning on the switch.
6
•Off (default)—Normal server startup.
•On—
Clears all passwords from the
BIOS at server startup.
If this switch is on, the server will clear all the
passwords at each startup. Make sure you turn
off the switch before the next server startup if
you do not need to clear all the passwords.
2, 3, 4, 7,
and 8 Reserved for future use. N/A
DIMM slots
The system board provides eight DIMM channels per processor, and 16 channels in total, as shown
in Figure 14. Each channel contains two DIMM slots.
Figure 14 System board DIMM slot layout