Gigabyte G492-ZL2 User manual

G492-ZL2
HPC Server - 4U DP SXM4 A100 8 GPU Server
User Manual
Rev. 1.0

Copyright
© 2021 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specications and features in this manual may be made by GIGABYTE without
prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or
published in any form or by any means without GIGABYTE's prior written permission.
Documentation Classications
In order to assist in the use of this product, GIGABYTE provides the following types of documentation:
 User Manual: detailed information & steps about the installation, conguration and use of this
product (e.g. motherboard, server barebones), covering hardware and BIOS.

User Guide: detailed information about the installation & use of an add-on hardware or
software component (e.g. BMC rmware, rail-kit) compatible with this product.
Quick Installation Guide: a short guide with visual diagrams that you can reference easily for
installation purposes of this product (e.g. motherboard, server barebones).
Please see the support section of the online product page to check the current availability of these
documents.
For More Information
For related product specications, the latest rmware and software, and other information please visit our website at
http://www.gigabyte.com
For GIGABYTE distributors and resellers, additional sales & marketing materials are available from our reseller
portal: http://reseller.b2b.gigabyte.com
For further technical assistance, please contact your GIGABYTE representative or visit
https://esupport.gigabyte.com/ to create a new support ticket
For any general sales or marketing enquiries, you may also message GIGABYTE server directly by email:
server[email protected]

Conventions
The following conventions are used in this user's guide:
NOTE!
Gives bits and pieces of additional
information related to the current topic.
CAUTION!
Gives precautionary measures to
avoid possible hardware or software problems.
WARNING!
Alerts you to any damage that might
result from doing or not doing specic actions.

Server Warnings and Cautions
Before installing a server, be sure that you understand the following warnings and cautions.
WARNING!
To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power cord grounding plug. The grounding plug is an important safety
feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all
times.
• Unplug all the power cords from the power supplies to disconnect power to the equipment.
•
• Shock Hazard! Disconnect all power supply cords before servicing.
• Do not route the power cord where it can be walked on or pinched by items placed against it.
Pay particular attention to the plug, electrical outlet, and the point where the cord extends from
the server.
WARNING!
To reduce the risk of personal injury from hot surfaces, allow the drives
and the internal system components to cool before touching them.
WARNING!
This server is equipped with high speed fans. Keep away from hazardous
moving fan blades during servicing.
WARNING!
This equipment is intended to be used in Restrict Access Location. The
access can only be gained by Skilled person.
Only authorized by well trained professional person can access the
restrict access location.
CAUTION!
• Do not operate the server for long periods with the access panel open or removed. Operat-
ing the server in this manner results in improper airow and improper cooling that can lead to
thermal damage.
• Danger of explosion if battery is incorrectly replaced.
• Replace only with the same or equivalent type recommended by the manufacturer.
• Dispose of used batteries according to the manufacturer’s instructions.

Electrostatic Discharge (ESD)
CAUTION!
ESD CAN DAMAGE DRIVES, BOARDS, AND OTHER PARTS. WE RECOMMEND THAT YOU
PERFORM ALL PROCEDURES AT AN ESD WORKSTATION. IF ONE IS NOT AVAILABLE,
PROVIDE SOME ESD PROTECTION BY WEARING AN ANTI-STATIC WRIST STRAP AT-
TACHED TO CHASSIS GROUND -- ANY UNPAINTED METAL SURFACE -- ON YOUR SERVER
WHEN HANDLING PARTS.
Always handle boards carefully. They can be extremely sensitive to ESD. Hold boards only by
their edges without any component and pin touching. After removing a board from its protective
wrapper or from the system, place the board component side up on a grounded, static free sur-
face. Use a conductive foam pad if available but not the board wrapper. Do not slide board over
any surface.
System power on/o󰀨: To remove power from system, you must remove the system from
rack. Make sure the system is removed from the rack before opening the chassis, adding, or
removing any non hot-plug components.
Hazardous conditions, devices and cables: Hazardous electrical conditions may be
present on power, telephone, and communication cables. Turn off the system and discon-nect
the cables attached to the system before servicing it. Otherwise, personal injury or equipment
damage can result.
Electrostatic discharge (ESD) and ESD protection: ESD can damage drives,
boards, and other parts. We recommend that you perform all procedures in this chapter only at
an ESD workstation. If one is not available, provide some ESD protection by wearing an antistatic
wrist strap attached to chassis ground (any unpainted metal surface on the server) when handling
parts.
ESD and handling boards: Always handle boards carefully. They can be extremely
sensi-tive to electrostatic discharge (ESD). Hold boards only by their edges. After removing a
board from its protective wrapper or from the system, place the board component side up on a
grounded, static free surface. Use a conductive foam pad if available but not the board wrapper.
Do not slide board over any surface.
Installing or removing jumpers: A jumper is a small plastic encased conductor that slips
over two jumper pins. Some jumpers have a small tab on top that can be gripped with n-gertips
or with a pair of ne needle nosed pliers. If the jumpers do not have such a tab, take care when
using needle nosed pliers to remove or install a jumper; grip the narrow sides of the jumper with
the pliers, never the wide sides. Gripping the wide sides can dam-age the contacts inside the
jumper, causing intermittent problems with the function con-trolled by that jumper. Take care to
grip with, but not squeeze, the pliers or other tool used to remove a jumper, or the pins on the
board may bend or break.

CAUTION!
Risk of explosion if battery is replaced incorrectly or with an incorrect type. Replace the battery
only with the same or equivalent type recommended by the manufacturer. Dispose of used bat-
teries according to the manufacturer’s instructions.

- 7 -
Table of Contents
Chapter 1 Hardware Installation ...................................................................................10
1-1 Installation Precautions.................................................................................. 10
1-2 Product Specications.................................................................................... 11
1-3 System Block Diagram................................................................................... 14
Chapter 2 System Appearance.....................................................................................15
2-1 Front View...................................................................................................... 15
2-2 Rear View....................................................................................................... 16
2-3 Front Panel LED and Buttons ........................................................................ 17
2-4 Front Panel System LAN LEDs...................................................................... 18
2-5 Power Supply Unit (PSU) LED....................................................................... 19
2-6 Hard Disk Drive LEDs .................................................................................... 20
Chapter 3 System Hardware Installation ......................................................................21
3-1 Removing and Installing the Chassis Top Cover............................................ 22
3-2 Removing and Installing the HGX Tray .......................................................... 23
3-3 Installing the CPU .......................................................................................... 24
3-4 Installing the Memory..................................................................................... 25
3-4-1 Eight Channel Memory Conguration.....................................................................25
3-4-2 Installing the Memory ............................................................................................26
3-4-3 Processor and Memory Module Matrix Table .........................................................26
3-4-4 Memory Population Table .......................................................................................27
3-5 Installing the PCI Expansion Card ................................................................. 28
3-6 Installing the Hard Disk Drive......................................................................... 29
3-7 Installing the M.2 Device and Heat Sink ........................................................ 30
3-8 Replacing the System Fan Module ................................................................ 31
3-9 Removing and Installing the Power Supply.................................................... 32
3-10 Liquid Cooling Assembly Information ............................................................. 33
3-10-1 Liquid Cooling Specications..................................................................................36
3-11 Cable Connection........................................................................................... 37
3-11-1 Motherboard to PCIe Board and Front IO Board....................................................37
3-11-2 PCIe Board to HDD Back plane Board...................................................................39
3-11-3 Motherboard to PCIe Board and HDD Back Plane Board......................................40
Chapter 4 Motherboard Components ...........................................................................42
4-1 Motherboard Components ............................................................................. 42

- 8 -
4-2 Jumper Setting .............................................................................................. 43
4-3 Backplane Board Storage Connector ............................................................ 44
4-3-1 CBPG060 ...............................................................................................................44
Chapter 5 BIOS Setup ..................................................................................................45
5-1 The Main Menu .............................................................................................. 47
5-2 Advanced Menu ............................................................................................. 50
5-2-1 Trusted Computing .................................................................................................52
5-2-2 PSP Firmware Versions..........................................................................................53
5-2-3 Legacy Video Select...............................................................................................54
5-2-4 AST2500 Super IO Conguration...........................................................................55
5-2-5 S5 RTC Wake Settings...........................................................................................57
5-2-6 Serial Port Console Redirection .............................................................................58
5-2-7 CPU Conguration..................................................................................................62
5-2-8 PCI Subsystem Settings.........................................................................................63
5-2-9 USB Conguration..................................................................................................65
5-2-10 Network Stack Conguration..................................................................................67
5-2-11 NVMe Conguration ...............................................................................................68
5-2-12 SATA Conguration.................................................................................................69
5-2-13 Graphic Output Conguration.................................................................................70
5-2-14 AMD Mem Conguration Status.............................................................................71
5-2-15 Tls Auth Conguration ............................................................................................72
5-2-16 iSCSI Conguration................................................................................................73
5-2-17 Intel(R) X710 Ethernet Controller ...........................................................................74
5-2-18 VLAN Conguration................................................................................................76
5-2-19 MAC IPv4 Network Conguration...........................................................................77
5-2-20 MAC IPv6 Network Conguration...........................................................................78
5-3 AMD CBS Menu............................................................................................. 79
5-3-1 CPU Common Options...........................................................................................80
5-3-2 DF Common Options..............................................................................................86
5-3-3 UMC Common Options ..........................................................................................91
5-3-4 NBIO Common Options........................................................................................106
5-3-5 FCH Common Options .........................................................................................112
5-3-6 NTB Common Options .........................................................................................116
5-3-7 SOC Miscellaneous Control .................................................................................117
5-3-8 Workload Tuning...................................................................................................118
5-4 AMD PBS Menu........................................................................................... 119
5-4-1 RAS ......................................................................................................................120
5-5 Chipset Setup Menu..................................................................................... 122
5-5-1 North Bridge .........................................................................................................123

- 9 -
5-5-2 Fabric Resource ...................................................................................................124
5-6 Server Management Menu........................................................................... 125
5-6-1 System Event Log ................................................................................................127
5-6-2 View FRU Information ..........................................................................................128
5-6-3 BMC Network Conguration .................................................................................129
5-6-4 IPv6 BMC Network Conguration.........................................................................130
5-7 Security Menu .............................................................................................. 131
5-7-1 Secure Boot .........................................................................................................132
5-8 Boot Menu.................................................................................................... 134
5-9 Save & Exit Menu......................................................................................... 136
5-10 BIOS POST Beep code (AMI standard)....................................................... 137
5-10-1 PEI Beep Codes ...................................................................................................137
5-10-2 DXE Beep Codes .................................................................................................137

- 10 -
Hardware Installation
1-1 Installation Precautions
The motherboard/system contain numerous delicate electronic circuits and components which
can become damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully
read the user manual and follow these procedures:
• Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or
warranty sticker provided by your dealer. These stickers are required for warranty validation.
• Always remove the AC power by unplugging the power cord from the power outlet before
installing or removing the motherboard or other hardware components.
• When connecting hardware components to the internal connectors on the motherboard,
make sure they are connected tightly and securely.
• When handling the motherboard, avoid touching any metal leads or connectors.
• It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic
components such as a motherboard, CPU or memory. If you do not have an ESD wrist
strap, keep your hands dry and rst touch a metal object to eliminate static electricity.
• Prior to installing the motherboard, please have it on top of an antistatic pad or within an
electrostatic shielding container.
• Before unplugging the power supply cable from the motherboard, make sure the power
supply has been turned off.
• Before turning on the power, make sure the power supply voltage has been set according to
the local voltage standard.
• Before using the product, please verify that all cables and power connectors of your
hardware components are connected.
• To prevent damage to the motherboard, do not allow screws to come in contact with the
motherboard circuit or its components.
• Make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
• Do not place the computer system on an uneven surface .
• Do not place the computer system in a high-temperature environment.
• Turning on the computer power during the installation process can lead to damage to
system components as well as physical harm to the user.
• If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certied computer technician.
Chapter 1 Hardware Installation

- 11 -
Hardware Installation
1-2 Product Specications
Socket
Socket
Security
Security
System
Dimension
4U
448 x 175.2 x 900 (W x H x D, mm)
Socket
Socket
Security
Security
CPU AMD EPYC™ 7003 processors with AMD 3D V-Cache™ Technology
AMD EPYC™ 7003 series processor family
Dual processors, 7nm
Up to 64-core, 128 threads per processor
cTDP up to 280W
NOTE: If only 1 CPU is installed, some PCIe or memory functions might be
unavailable
Socket
Socket
Security
Security
Chipset System on Chip
Socket
Socket
Security
Security
Memory 32 x DIMM slots
DDR4 memory supported only
8-channel memory architecture per processor
RDIMM modules up to 128GB supported
LRDIMM modules up to 128GB supported
3DS RDIMM/LRDIMM modules up to 256GB supported
Memory speed: Up to 3200*/ 2933 MHz
Note:
* Follow BIOS setting and memory QVL list if running 3200 Mhz with 2DPC
Socket
Socket
Security
Security
LAN 2 x 10Gb/s BASE-T LAN ports (Intel® X710-AT2)
1 x 10/100/1000 management LAN
Socket
Socket
Security
Security
Video Integrated in Aspeed® AST2500
2D Video Graphic Adapter with PCIe bus interface
1920x1200@60Hz 32bpp, DDR4 SDRAM
Socket
Socket
Security
Security
Storage 6 x 2.5" Gen4 U.2 NVMe/ SATA hot-swappable HDD/SSD bays
Socket
Socket
Security
Security
RAID N/A
Socket
Socket
Security
Security
Expansion Slot 8 x SXM4 sockets for NVIDIA HGX™ A100 8-GPU 40GB/80GB module
10 x Low prole Gen4 x16 expansion slots
- 8 x expansion slots in rear side, 2 x expansion slots in front side
M.2 extension board: CMTP062
2 x M.2 slots:
- M-key
- PCIe Gen4 x4
- Supports NGFF-2242/2260/2280 cards
NOTE:
We reserve the right to make any changes to the product specications and product-related
information without prior notice.

- 12 -
Hardware Installation
Socket
Socket
Security
Security
Internal I/O 1 x TPM header
1 x Front panel header
Socket
Socket
Security
Security
Front I/O 2 x USB 3.0
1 x VGA
2 x RJ45
1 x MLAN
1 x Power button with LED
1 x ID button with LED
1 x Reset button
1 x NMI button
1 x System status LED
1 x HDD access LED
Socket
Socket
Security
Security
Rear I/O N/A
Socket
Socket
Security
Security
Backplane I/O 6 x 2.5" NVMe/ SATA hybrid ports
Speed and bandwidth: PCIe Gen4 or SATA 6Gb/s
Socket
Socket
Security
Security
TPM 1 x TPM header with SPI interface
Optional TPM2.0 kit: CTM010
Socket
Socket
Security
Security
Power Supply 3+1 x 3000W redundant PSUs
80 PLUS Platinum
AC Input:
- 115-127V~/ 14.2A, 50-60Hz
- 200-240V~/ 15.8A, 50-60Hz
DC Input:
240Vdc/ 14A
DC Output:
- Max 1200W/ 100-127V~
+54V/ 95.6A
+12Vsb/ 3.5A
- Max 3000W/ 200-240V~
+54V/ 178.1A
+12Vsb/ 3.5A
NOTE: The system power supply requires C19 type power cord

- 13 -
Hardware Installation
Socket
Socket
Security
Security
System
Management
Aspeed® AST2500 management controller
GIGABYTE Management Console (AMI MegaRAC SP-X) web interface
Dashboard
HTML5 KVM
Sensor Monitor (Voltage, RPM, Temperature, CPU Status …etc.)
Sensor Reading History Data
FRU Information
SEL Log in Linear Storage / Circular Storage Policy
Hardware Inventory
Fan Prole
System Firewall
Power Consumption
Power Control
LDAP / AD / RADIUS Support
Backup & Restore Conguration
Remote BIOS/BMC/CPLD Update
Event Log Filter
User Management
Media Redirection Settings
PAM Order Settings
SSL Settings
SMTP Settings
Socket
Socket
Security
Security
Operating
Properties
Operating temperature: 10°C to 35°C
Operating humidity: 8-80% (non-condensing)
Non-operating temperature: -40°C to 60°C
Non-operating humidity: 20%-95% (non-condensing)

- 14 -
Hardware Installation
1-3 System Block Diagram
G492-ZD2 System Block Diagram
8-Channel DDR4, 16 x DIMMs
Speed up to 3200 MHz
4 x PCIe x16 slots
(rear side)
PCIe x16 slot
(front side, support MD2 card)
PCIe x16 slot
(front side, support MD2 card)
8-Channel DDR4, 16 x DIMMs
Speed up to 3200 MHz
xGMI2 18GT/s
x4 Link
BIOS
TPM
2 x 10GbE
BASE-T LAN
2 x USB 3.0
MLAN
VGA
eSPI WAFL x1 USB2.0 x2 USB3.0 x2
ASPEED
AST2500
10/100/1G
PHY(1ch) MAC
BMC
PCIe3.0x4
Intel
X710-AT2
SATA III x8
PCIe4.0 x16
NVMe x1 NVMe x2
SPI
PCIe4.0 x16
PCIe4.0 x16 NVMe x1 NVMe x2 PCIe4.0 x16
6-bay 2.5” Gen4 U.2 NVMe/ SATA
PCIe4.0 x16 PCIe4.0 x16
4 x PCIe x16 slots
(rear side)
CPU0
ROME / MILAN
“Zen3” Core
Socket SP3
PCIe Switch
PEX88096
PCIe Switch
PEX88096
PCIe Switch
PEX88096
PCIe Switch
PEX88096
CPU1
ROME / MILAN
“Zen3” Core
Socket SP3
NVIDIA HGX A100 8-GPU
NVIDIA HGX A100 8-GPU
(Delta Baseboard)
(Delta Baseboard)
NVIDIA HGX A100 8-GPU
(Delta Baseboard)
SPI Flash 32MB
Front Panel
PCIe4.0x4
PCIe4.0x4M.2
M.2
CMTP062
(rear side)

- 15 -
System Appearance
Chapter 2 System Appearance
2-1 Front View
134
6
5
2
7
HDD0
HDD1 HDD2 HDD3 HDD4 HDD5
PCIe Slot PCIe Slot
No. Description No. Description
1. HGX Tray 5. VGA Port
2. Front Panel LEDs and Buttons 6. USB 3.0 Port x 2
3. 10GbE LAN Port x 2 7. HGX Tray Lock
4. 10/100/1000 Server Management LAN Port -- --
Coolant Supply Valve Coolant Return Valve
NOTE! Green HDD Latch Supports NVMe
• Go to the section 2-3 Front Panel Buttons and LEDs for detail description of function
LEDs.

- 16 -
System Appearance
2-2 Rear View
1
Rear
Fan
9/10
PSU1
PSU2
PSU3
PSU4
Rear
Fan
1/2
Rear
Fan
3/4
Rear
Fan
5/6
Rear
Fan
7/8
Rear
Fan
11/12
No. Description
1. PCIe Card Cage x 2

- 17 -
System Appearance
2-3 Front Panel LED and Buttons
No. Name Color Status Description
1. Reset Button Press the button to reset the system.
2. NMI button
Press the button server generates a NMI to the processor
if the multiple-bit ECC errors occur, which effectively halt
the server.
3. HDD Status
LED
Green On HDD locate
Blink HDD access
Amber On HDD fault
Green/
Amber Blink HDD rebuilding
N/A Off No HDD access or no HDD fault.
4. System
Status LED
Green Solid On System is operating normally.
Amber
Solid On
Critical condition, may indicate:
System fan failure
System temperature
Blink
Non-critical condition, may indicate:
Redundant power module failure
Temperature and voltage issue
Chassis intrusion
N/A Off
System is not ready, may indicate:
POST error
NMI error
Processor or terminator missing
5. Power button
with LED
Green On System is powered on
Green Blink System is in ACPI S1 state (sleep mode)
N/A Off
• System is not powered on or in ACPI S5 state
(power off)
• System is in ACPI S4 state (hibernate mode)
6. ID Button Press the button to activate system identication
ID
RST HDD
SYS
NMI
1 3
2 4 5 6

- 18 -
System Appearance
2-4 Front Panel System LAN LEDs
4
1
2
1
2
3
No. Name Color Status Description
1. 10GbE
Speed LED
Green On 10 Gbps data rate
Yellow On 5Gbps, 2.5Gbps, 1Gbps data rate
N/A Off 100 Mbps data rate
2. 10GbE Link /
Activity LED
Green On Link between system and network or no access
Blink Data transmission or reception is occurring.
N/A Off No data transmission or reception is occurring.
3. 1GbE Speed
LED
Yellow On 1 Gbps data rate
Green On 100 Mbps data rate
N/A Off 10 Mbps data rate
4. 1GbE Link /
Activity LED
Green On Link between system and network or no access
Blink Data transmission or reception is occurring.
N/A Off No data transmission or reception is occurring.

- 19 -
System Appearance
2-5 Power Supply Unit (PSU) LED
State Description
OFF No AC power to all power supplies
1Hz Green Blinking AC present / only standby on / Cold redundant mode
2Hz Green Blinking Power supply rmware updating mode
Amber
AC cord unplugged or AC power lost; with a second
power supply in parallel still with AC input power
Power supply critical event causing shut down:
failure, OCP, OVP, fan failure and UVP
1Hz Amber Blinking
Power supply warning events where the
power supply continues to operate:
high temp, high power, high current and slow fan
PSU LED

- 20 -
System Appearance
2-6 Hard Disk Drive LEDs
/('
/('
Disk LED
(LED on
Back Panel)
Removed HDD Slot
(LED on Back Panel)
Disk LED
Removed HDD Slot
RAID SKU
No RAID configuration
(via HBA)
RAID configuration
(via HW RAID Card or
SW RAID Card)
HDD
Access
HDD Present
(No Access)
BLINK (*2)
BLINK (*2)
OFF
OFF
OFF
OFF
OFF
--
--
--
--
--
--
--
--
OFF
(Low Speed: 2 Hz)
(*3)
(*3)
Rebuilding
HDD Fault
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
Locate
Amber
Green ON(*1)
ON
OFF
ON(*1)
OFF
Green
Amber
Green
ON(*1)Green
OFFAmber
Amber OFF
LED1
LED 2 HDD Present No HDD
Green ON OFF
NOTE:
*1: Depends on HBA/Utility Spec.
*2: Blink cycle depends on HDD's activity signal.
*3: If HDD is pulled out during rebuilding, the disk status of this HDD is regarded as faulty.