Gigabyte G481-HA0 User manual

G481-HA0

G481-HA1

Dual LGA3647 sockets motherboard for Intel® Scalable Family Processors

User Manual

Rev. 1.1

Copyright

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 the power cord from the power supply to disconnect power to the equipment.

• 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.

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 disconnect the

cables attached to the system before servicing it. Otherwise, personal injury or equipment dam-

age 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

sensitive 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 ngertips

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 ...................................................................................11

1-1 Installation Precautions .................................................................................. 11

1-2 Product Specications .................................................................................... 12

1-3 System Block Diagram ................................................................................... 15

Chapter 2 System Appearance ..................................................................................... 17

2-1 Front View ...................................................................................................... 17

2-2 Rear View ....................................................................................................... 18

2-3 Front Panel Buttons and LEDs ....................................................................... 19

2-4 Front System LAN LEDs ................................................................................ 20

2-5 Rear System LAN LEDs (Optional) ................................................................ 20

2-6 Power Supply Unit (PSU) LED ....................................................................... 21

2-7 Hard Disk Drive LEDs .................................................................................... 21

2-8 Memory Status LED ....................................................................................... 22

Chapter 3 System Hardware Installation ......................................................................23

3-1 Removing the Top Rear Cover ....................................................................... 24

3-2 Removing and Installing the Air Duct ............................................................. 25

3-3 Removing the GPU Fan Module .................................................................... 26

3-4 Installing the GPU Card (Optional) ................................................................. 27

3-5 Installing the PCIe Card ................................................................................. 30

3-6 Installing the CPU and Heat Sink ................................................................... 32

3-7 Installing the Memory ..................................................................................... 34

3-7-1 Six Channel Memory Conguration ........................................................................34

3-7-2 Installing a Memory ...............................................................................................35

3-7-3 DIMM Population Rule ............................................................................................35

3-7-4 DIMM Population Table .........................................................................................36

3-7-5 DIMM Optimal Performance Population Table .......................................................36

3-7-6 Intel Optane DCPMM DIMM Population Rule ........................................................37

3-8 Installing the 2.5" Hard Disk Drive.................................................................. 38

3-9 Installing the 3.5" Hard Disk Drive.................................................................. 39

3-10 Replacing the System FAN Module ............................................................... 40

3-11 Removing the Top Front Cover ...................................................................... 41

3-12 Replacing the PCIe RAID Card ...................................................................... 42

3-13 Replacing the Power Supply .......................................................................... 44

3-14 Replacing the LAN Module ............................................................................ 45

- 8 -

3-15 Cable Connections ......................................................................................... 46

3-15-1 Motherboard CPU & System Power to PCIe Board ...............................................46

3-15-2 Motherboard Slimline 8i to PCIe Board ..................................................................46

3-15-3 Motherboard Slimline 4i to PCIe Board ..................................................................47

3-15-4 MLAN/NCSI Signal .................................................................................................47

3-15-5 Motherboard to 2.5" HDD Backplane Board ...........................................................48

3-15-6 SATA Connections between HDD Backplane Board and Daughter Board .............48

Chapter 4 Motherboard Components ...........................................................................49

4-1 Motherboard Components ............................................................................. 49

4-2 Jumper Settings ............................................................................................ 50

Chapter 5 BIOS Setup ..................................................................................................51

5-1 The Main Menu .............................................................................................. 53

5-2 Advanced Menu ............................................................................................. 56

5-2-1 iSCSI Conguration ................................................................................................57

5-2-2 Intel(R) Virtual RAID on CPU .................................................................................58

5-2-3 Intel(R) I350 Gigabit Network Connection ..............................................................59

5-2-4 VLAN Conguration ................................................................................................61

5-2-5 Intel(R) Omni-Path HFI 100 Series .........................................................................64

5-2-6 Intel(R) Ethernet Controller X550 ...........................................................................66

5-2-7 LSI SAS3 MPT Controller SAS3008 .......................................................................68

5-2-8 Trusted Computing .................................................................................................69

5-2-9 Serial Port Console Redirection .............................................................................70

5-2-10 SIO Conguration ...................................................................................................73

5-2-11 PCI Subsystem Settings .........................................................................................74

5-2-12 Network Stack Conguration ..................................................................................76

5-2-13 Post Report Conguration ......................................................................................77

5-2-14 NVMe Conguration ...............................................................................................78

5-2-15 USB Conguration ..................................................................................................79

5-2-16 Chipset Conguration .............................................................................................80

5-3 Chipset Setup Menu ....................................................................................... 81

5-3-1 Processor Conguration .........................................................................................82

5-3-2 Common RefCode Conguration ...........................................................................84

5-3-3 UPI Conguration ...................................................................................................85

5-3-4 Memory Conguration ............................................................................................86

5-3-5 IIO Conguration ....................................................................................................88

5-3-6 Advanced Power Management Conguration ........................................................90

5-3-7 PCH Conguration .................................................................................................93

5-3-8 Miscellaneous Conguration ..................................................................................95

5-3-9 Server ME Conguration ........................................................................................96

5-3-10 Runtime Error Logging ...........................................................................................97

- 9 -

5-3-11 Power Policy ...........................................................................................................99

5-4 Server Management Menu ........................................................................... 101

5-4-1 System Event Log ................................................................................................103

5-4-2 View FRU Information ..........................................................................................104

5-4-3 BMC VLAN Conguration .....................................................................................105

5-4-4 BMC Network Conguration .................................................................................106

5-4-5 IPv6 BMC Network Conguration .........................................................................107

5-5 Security Menu .............................................................................................. 108

5-5-1 Secure Boot .........................................................................................................109

5-6 Boot Menu ..................................................................................................... 111

5-6-1 UEFI NETWORK Drive BBS Priorities ................................................................113

5-6-2 UEFI Application Boot Priorities ................................................................. 114

5-7 Save & Exit Menu ......................................................................................... 115

5-8 BIOS POST Codes ...................................................................................... 117

5-8-1 AMI Standard - PEI ...............................................................................................117

5-8-2 AMI Standard - DXE .............................................................................................117

5-8-3 AMI Standard - ERROR .......................................................................................119

5-8-4 Intel UPI POST Codes ..........................................................................................120

5-8-5 Intel UPI Error Codes ...........................................................................................120

5-8-6 Intel MRC POST Codes .......................................................................................121

5-8-7 Intel MRC Error Codes .........................................................................................121

5-8-8 Intel PM POST Codes ..........................................................................................122

5-8-9 Intel PM POST Codes ..........................................................................................122

5-9 BIOS POST Beep code (AMI standard) ....................................................... 123

5-9-1 PEI Beep Codes ...................................................................................................123

5-9-2 DXE Beep Codes .................................................................................................123

5-10 BIOS Recovery Instruction ........................................................................... 124

- 10 -

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- 11 - 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 service guide 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

Hardware Installation - 12 -

1-2 Product Specications

CPU 2nd Generation Intel® Xeon® Scalable and Intel® Xeon® Scalable Processors

Intel® Xeon® Platinum Processor, Intel® Xeon® Gold Processor, Intel® Xeon®

Silver Processor and Intel® Xeon® Bronze Processor

NOTE: If only 1 CPU is installed, some PCIe or memory functions might be

unavailable.

Socket 2 x LGA 3647

Socket P0

Mounting pitch: Narrow ILM

Chipset Intel® C621 Express Chipset

Memory 24 x DIMM slots

DDR4 memory supported only

6-channel memory architecture

RDIMM modules up to 32GB supported

LRDIMM modules up to 64GB supported

Support Intel® Optane™ DC Persistent Memory

1.2V modules: 2933 (1DPC)/2666/2400/2133 MHz

NOTE:

1. 2933MHz for 2nd Generation Intel® Xeon® Scalable Processors only

2. Intel® Optane™ DC Persistent Memory for 2nd Generation Intel® Xeon®

Scalable Processors only

LAN 2 x 10Gb/s BASE-T LAN ports (Intel® X550-AT2)

2 x 1Gb/s BASE-T LAN ports (Intel® I350-AM2)

1 x 10/100/1000 management LAN

Expansion Slot 10 x PCIe x16 slot (Gen3 x16) for GPGPU card

- 8x GPGPU supported as standard

- 10x GPGPU (optional)

1 x PCIe x16 slot (Gen3 x16) for low prole

1 x PCIe x16 slot (Gen3 x8) for LSI RAID card

System is validated for population with a uniform GPU model

Support is not provided for mixed GPU populations

Video Integrated in Aspeed® AST2500

2D Video Graphic Adapter with PCIe bus interface

1920x1200@60Hz 32bpp, DDR4 SDRAM

Storage 10 x 2.5" SATA/SAS hot-swappable HDD/SSD bay

12 x 3.5" SATA/SAS hot-swappable HDD/SSD bay

8 x 2.5" PCIe hot-swappable NVMe (optional)

SAS Supported via add-on SAS Card

- 13 - Hardware Installation

Internal

Connectors

3 x 24-pin power connector (CPU + system power rail)

2 x 14-pin power connector (HDD BPB power rail)

1 x 18-pin power connector (fan power rail)

10 x 8-pin power connector (GPGPU power rail)

1 x 8-pin power connector (front board power rail)

11 x slim 8i connector (PCIe signal)

1 x slim 8i connector (front board signal)

2 x slim 4i connector (PCH SATA signal)

1 x slim 4i connector (MLAN + NCSI signal)

1 x slim 4i connector (system sideband signal)

1 x TPM header

1 x HDD back plane board header

1 x IPMB connector

1 x RAID key connector

1 x Clear CMOS jumper

Front Panel

LED/Buttons

1 x NMI button

2 x USB3.0 connector

1 x MLAN connector with LED (optional for MLAN at rear side of the system)

2 x RJ45 LAN connector with LED

1 x VGA connector

1 x Power button with LED

1 x ID button with LED

1 x HDD activity LED

1 x Reset button

1 x System status LED

Rear Panel I/O 2 x RJ45 LAN connector with LED

1 x MLAN connector with LED

Backplane I/O 22 x SAS/SATA port (including 8 x PCIe NVMe port)

Bandwidth: SATAIII 6Gb/s or SAS 12Gb/s per port

SAS card is required for SAS device support

TPM 1 x TPM header

Hardware Installation - 14 -

System

Management

Aspeed® AST2500 management controller

Avocent® MergePoint IPMI 2.0 web interface:

Network settings

Network security settings

Hardware information

Users control

Services settings

IPMI settings

Sessions control

LDAP settings

Power control

Fan proles

Voltages, fans and temperatures monitoring

System event log

Events management (platform events, trap settings, email settings)

Serial Over LAN

vKVM & vMedia (HTML5)

Power Supply 3 x 2200W redundant PSU

80 PLUS Platinum

AC Input:

- 2200W: 200-240V/ 12.6A, 50-60Hz

DC Output:

- 2200W@12V/ 178.1A, 12VSB/ 3.5A

Ambient

Temperature

Relative

Humidity

Operating temperature: 10°C to 35°C

Non-operating temperature: -40°C to 60°C

Operating humidity: 8 - 80% (non-condensing)

Non-operating humidity: 20% - 95% (non-condensing)

System

Dimension

4U

447 (W) x 175.2 (H) x 822.15 (D) (mm)

17.60 (W) x 6.90 (H) x 32.37 (D) (inch)

* We reserve the right to make any changes to the product specications and product-related information without prior

notice.

- 15 - Hardware Installation

1-3 System Block Diagram

G481-HA0

PCIe3.0 x16

PCIe3.0 x4

PCIe3.0 x16

2A~2D

PCIe3.0 x16

PCIe3.0 x8

PCIe x16 slot

(GPU#5)

PCIe x16 slot

(GPU#6)

PCIe x16 slot

(GPU#7)

PCIe x16 slot

(GPU#8)

PCIe x16 slot

(GPU#9)

PLX

2 x10G BASE-T LAN

(Rear Side)

8-bay 2.5” NVMe/SATA/SAS + 2-bay 2.5” SATA/SAS

+ 12-bay 3.5” SAS/SATA

SAS RAID card

+ Expander

PCIe x16 slot

(Rear side, support MD2 card)

PCIe x16 slot

(GPU#0)

PCIe x16 slot

(GPU#1)

PCIe x16 slot

(GPU#2)

PCIe x16 slot

(GPU#3)

PCIe x16 slot

(GPU#4)

2/3 x UPI @9.6/10.4 GT/s

PLX

PCIe2.0 x4

2 x USB3.0/USB2.0

2 x1G Base-T LAN

(Front Side)

Intel I350

PCIe2.0 x1

2 x USB2.0

LPC/eSPI

Intel

X550-AT2

NCSI

BMC

ASPEED

AST2500

MLAN

10/100/1G

PHY(1ch)

MAC

DMI3 x4

2 x USB 3.0

(Front Side)

BIOS

SPI Flash 32MB

PCH

Intel C621

Lewisburg

VGA

TPM

Skylake SP

Cascade Lake SP

LGA3647 (Socket P0)

CPU0

Skylake SP

Cascade Lake SP

LGA3647 (Socket P0)

CPU1

6-Channel DDR4

12 x DIMM slots

6-Channel DDR4

12 x DIMM slots

Hardware Installation - 16 -

G481-HA1

PCIe3.0 x16

PCIe3.0 x4

PCIe3.0 x16

2A~2D

PCIe3.0 x16

PCIe x16 slot

(GPU#5)

PCIe x16 slot

(GPU#6)

PCIe x16 slot

(GPU#7)

PCIe x16 slot

(GPU#8)

PCIe x16 slot

(GPU#9)

PLX

2 x10G BASE-T LAN

(Rear Side)

PCIe x16 slot

(Rear side, support MD2 card)

PCIe x16 slot

(GPU#0)

PCIe x16 slot

(GPU#1)

PCIe x16 slot

(GPU#2)

PCIe x16 slot

(GPU#3)

PCIe x16 slot

(GPU#4)

2/3 x UPI @9.6/10.4 GT/s

PLX

PCIe2.0 x4

2 x USB3.0/USB2.0

2 x1G Base-T LAN

(Front Side)

Intel I350

PCIe2.0 x1

2 x USB2.0

LPC/eSPI

Intel

X550-AT2

NCSI

BMC

ASPEED

AST2500

MLAN

10/100/1G

PHY(1ch)

MAC

2 x USB 3.0

(Front Side)

BIOS

SPI Flash 32MB

VGA

TPM

PCIe3.0 x16

PCIe3.0 x8

8-bay 2.5” NVMe/SATA/SAS + 2-bay 2.5” SATA/SAS

+ 12-bay 3.5” SAS/SATA

SAS RAID card

+ Expander

PCH

Intel C621

Lewisburg

DMI3 x4

Skylake SP

Cascade Lake SP

LGA3647 (Socket P0)

CPU0

Skylake SP

Cascade Lake SP

LGA3647 (Socket P0)

CPU1

6-Channel DDR4

12 x DIMM slots

6-Channel DDR4

12 x DIMM slots

- 17 - System Appearance

Chapter 2 System Appearance

2-1 Front View

• Go to the section 2-3 Front Panel Buttons and LEDs for detail description of function

LEDs.

1 2 3 4 5 6

78

HDD #0

HDD #1

HDD #2

HDD #3

HDD #4

HDD #5

HDD #6

HDD #7

HDD #8

HDD #9

HDD #12

HDD #13

HDD #14

HDD #15

HDD #16

HDD #17

HDD #18

HDD #19

HDD #20

HDD #21

HDD #22

HDD #23

No. Description No. Description

1. RAID Card Slot 5. USB 3.0 Port x 2

2. Front Panel LEDs and Buttons 6. VGA Port

3. 10GbE LAN Port x 2 7. 2.5-inch HDD Bay x 10 (#0 to #9)

4. 10/100/1000 Server Management LAN Port 8. 3.5-inch HDD Bay x 12 (#12 to #23)

System Appearance - 18 -

2-2 Rear View

-C-

PSU #1

PSU #2

PSU #3

1

234

5

6

No. Description No. Description

1. GPU Fan Module 4. 10/100/1000 Server Management LAN Port

2. PCIe x16 Slot x 8 5. LAN Module

3. 10GbE LAN Port x 2 (optional) 6. Power Supply Unit x 3 (PSU #1 to #3)

- 19 - System Appearance

2-3 Front Panel Buttons and LEDs

1

3456

2

No. Name Color Status Description

1. Reset Button -- -- Press this button to reset the system.

2. HDD Status

LED

Green On Indicates locating the HDD.

Blink Indicates accessing the HDD.

Amber On Indicates HDD error.

Green /

Amber Blink Indicates HDD rebuilding.

N/A Off Indicates no HDD access or no HDD error.

3. System

Status LED

Green Solid On Indicates system is operating normally.

Amber

Solid On

Indicates a critical condition, may include:

- System fan failure

- System temperature

Blink

Indicates non-critical condition, may include:

- Redundant power module failure

- Temperature and voltage issue

- Chassis intrusion

N/A Off

Indicates system is not ready, may include:

- POST error

- NMI error

- Processor or terminator is missing

4. NMI Button -- --

Press this button for the server to generate a NMI to the

processor. If multiple-bit ECC errors occur, the server will

effectively be handled.

5. ID Button

with LED -- -- Press this button to activate system identication.

6. Power Button

with LED

Green On Indicates the system is powered on.

Green Blink System is in ACPI S1 slate (sleep mode).

N/A Off Indicates system is not powered on or in ACPI S5 slate

(power off) or system is in ACPI S4 slate (hibernation mode).

System Appearance - 20 -

2-4 Front System LAN LEDs

1 1

1

2 2

2

No. Name Color Status Description

1. GbE Speed

LED

Yellow On 1 Gbps data rate

Green On 100 Mbps data rate

N/A Off 10 Mbps data rate

2. GbE 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.

2-5 Rear System LAN LEDs (Optional)

1 12 2 1 2

No. Name Color Status Description

1. GbE Speed

LED

Yellow On 1 Gbps data rate

Green On 100 Mbps data rate

N/A Off 10 Mbps data rate

2. GbE 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.

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