ASROCK 2U4G Series User manual

2U4G Series

User Manual

Version 1.0

Published March 2019

Version 1.0

Published December 2020

No part of this documentation may be reproduced, transcribed, transmitted, or translated

in any language, in any form or by any means, except duplication of documentation by the

purchaser for backup purpose, without written consent of us.

Products and corporate names appearing in this documentation may or may not be

registered trademarks or copyrights of their respective companies, and are used only for

identication or explanation and to the owners’ benet, without intent to infringe.

Disclaimer:

Specifications and information contained in this documentation are furnished for

informational use only and subject to change without notice, and should not be

constructed as a commitment by us. We assumes no responsibility for any errors or

omissions that may appear in this documentation.

With respect to the contents of this documentation, we do not provide warranty of any

kind, either expressed or implied, including but not limited to the implied warranties or

conditions of merchantability or tness for a particular purpose.

In no event shall we, our directors, ocers, employees, or agents be liable for any indirect,

special, incidental, or consequential damages (including damages for loss of prots, loss of

business, loss of data, interruption of business and the like), even if we have been advised

of the possibility of such damages arising from any defect or error in the documentation or

product.

is device complies with Part 15 of the FCC Rules. Operation is subject to the following

two conditions:

(1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that

may cause undesired operation.

CALIFORNIA, USA ONLY

e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance

controlled in Perchlorate Best Management Practices (BMP) regulations passed by the

California Legislature. When you discard the Lithium battery in California, USA, please

follow the related regulations in advance.

“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/

perchlorate”

Setting up the Server in a Restricted Access Location

• Access can only be gained by service persons or by users who have been instructed

about the reasons for the restrictions applied to the location and about any precautions

that shall be taken.

• Access is through the use of a tool or lock and key, or other means of security, and is

controlled by the authority responsible for the location.

• Leave enough clearance (25 inches in the front and 30 inches in the back of the rack) to

allow the front door to be opened completely and to allow for sucient airow.

• is product is for installation merely in a Restricted Access Location.

• is product is not suitable for use with visual display work place devices according to §2

of the the German Ordinance for Work with Visual Display Units.

Replaceable Batteries

CAUTION

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.

DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS

Warning

When removal of the chassis lid required for servicing:

- Turn o power and unplug any power cords/cables, and

- Reinstall the chassis lid before restoring power.

Important Safety Instructions

Pay close attention to the following safety instructions before performing any of

the operation. Basic safety precautions should be followed to protect yourself from

harm and the product from damage:

• Operation of the product should be carried out by suitably trained, qualied, and

certied personnel only to avoid risk of injury from electrical shock or energy hazard.

• Disconnect the power cord from the wall outlet when installing or removing main

system components, such as the motherboard and power supply unit.

• Place the system on a stable and at surface.

• Use extreme caution when working with high-voltage components.

• When handling parts, use a grounded wrist strap designed to prevent static discharge.

• Keep the area around the system clean and clutter-free.

• Keep all components and printed circuit boards (PCBs) in their antistatic bags when

not in use.

• Handle a board by its edges only; do not touch its components, peripheral chips,

memory modules or contacts.

Contents

Chapter 1 Introduction 1

1.1 Shipping Box Contents 2

1.2 Specications 3

Chapter 2 Server System Overview 4

2.1 System Components 4

2.2 Internal Features 5

2.3 System Front Panel 6

2.4 System Rear Panel 7

2.5 Front Control Panel Buttons and LEDs 9

2.6 PSU LED 10

2.7 Drive Tray LEDs 11

Chapter 3 Hardware Installation and Maintenance 12

3.1 Server Top Cover 13

3.2 Hard Drive 17

3.3 Power Supply 20

3.4 System Fan 22

3.5Front GPU Card (on the riser-card assembly) 23

3.6 Rear GPU Card (on the riser-card assembly) 25

3.7 Installing a LAN Card (for 2U4G-C621WS only) 28

3.8 Installing a PCIE Card (for 2U4G-EPYC only) /

Retimer Card (PE-SSD-RT) (for 2U4G-C621WS only) 30

3.9LAN Mezzanine Card (for 2U4G-ROME/2T only) 32

Appendix A 35

Installing the CPU (Socket: LGA-3647) 35

Installing the CPU (Socket: LGA-4094) 38

Appendix B 42

Jumper Settings for the Riser Board 42

Appendix C 43

Block Diagram: EPYCD8 (for 2U4G-EPYC) 43

Block Diagram: EP2C621D12 WS (for 2U4G-C621WS) 44

Block Diagram: ROMED8QM-2T (2U4G-ROME/2T) 45

2U4G Series

PB 1

English

Chapter 1 Introduction

ank you for purchasing 2U4G Series, a reliable system produced under our

consistently stringent quality control. It delivers excellent performance with robust

design conforming to our commitment to quality and endurance.

e illustrations shown in this manual are examples only, the actual system may dier

slightly .

Because the hardware specications might be updated, the content of this documentation

will be subject to change without notice.

2 3

English

1.1 Shipping Box Contents

Item Quantity

GPU Power Cable (Red & Orange / L=800mm ; Blue & Green / L=500mm) 4

PMBus Cable (L=390mm) 1

Power ATX Cable (8PIN) (L=350mm) 2

Power ATX Cable (24 PINTO 24 PIN ) (L=150mm) 1

SWB Power Cable (SWB CABLE 2*6P(3.0)PWR; L=400mm) 3

HDD Power Cable (HDD PWR 2*4P TO 2*6P; L=800mm) 1

SLIMLINE Cables (L=800mm / 500mm) 6

Front Control Cable (2*10P(2.0)TO 2*10P+2*5P(2.54)) 1

MNG Cable(L=960mm) 1

MINISAS HD to OcuLink (S/T) Cable (L=710mm) (2U4G-C621WS only) 2

USB Cable (25P 2.54HSG TO 2.0HSG) (L=1.25M) (2U4G-C621WS only) 1

SATA 6G Cable (L=820mm) (2U4G-C621WS only) 4

SGPIO Cable (L=615mm) (2U4G-C621WS only) 1

MINISAS HD TO 4*SATA+SGPIO Cable (L=700mm) (2U4G-EPYC only) 1

USB Cable (USD 3.0(20P) TO 2*5P HEADER) (L=880mm) (2U4G-EPYC only) 1

OcuLink Cables (L=600mm) (2U4G-EPYC only) 2

Accessory Box 1

Slide Rail Kit 1

Support CD 1

User Manual 1

Quick Installation Guide 1

If any items are missing or appear damaged, contact your authorized dealer.

2U4G Series

2 3

English

1.2 Specications

2U4G Series (2U4G-EPYC / 2U4G-C621WS / 2U4G-ROME/2T)

System Physical Status

Form Factor 2U Rackmount

Dimension

(D x W x H)

438x 795x 87.5 mm (without ear)

Support MB Size EATX 12" x 13" (EP2C621D12 WS) / ATX 12 " x 9.6" (EPYCD8)

/ ATX 12 " x 9.6" (ROMED8QM-2T)

Front Panel (per node)

Buttons • Power button

• UID button

LEDs • Power LED

• UID LED

• LAN activity LED

• System Event LED

I/O Port 2 x USB 2.0 ports

Drive Bay

External • 4 x 2.5" SATA 6GB/s HDDs (1x SATA3 HDD could support

NVME SSD or SATA3 6GB/s HDDs)

• 1 x NVME SSD

System Cooling

Fan 6 x 80*38 mm system fans

Power Supply

Capacity 2 (1+1), Redundant

Input 200~240V , 15A, 50/60Hz

Output Watts 2000W

Eciency Platinum

GPU Card (on the riser card assembly)

GPU Watts Max 300w /per card

Support GPU 4 x GPU cards

Please refer to the user manual of the motherboard you use for detailed information about

motherboard components and features.

4 5

English

Chapter 2 Server System Overview

is chapter provides diagrams showing the location of important components of

the server system.

2.1 System Components

5 x 2.5” Hot-Swap HDD Trays

Sever Board

2 x Power Supply Units

6 x System Fans

Front Controls and Indicators

4 x Riser Card Assemblies (GPU Cards)

1 x Riser Card Assemby (LAN Card)

(2U4G-C621WS only)

1 x PCIE Card Slot

(2U4G-C621WS only:

Retimer Card PE-SSD-RT

for NVME SSD support)

2U4G Series

4 5

English

2.2 Internal Features

2 3 4

8910

11 12

14 15 16

No. Item / per node

Server Board

(e serverboard varies depending on the

system SKU.)

2PCIE Card Slot (for Retimer Card

PE-SSD-RT) (2U4G-C621WS only)

3 Riser Card Slot4 (GPU Card)

4Riser Card Slot5 (LAN Card)

(2U4G-C621WS only)

5 Power Supply Units

6 Power Distribution Boards

7System Fan2

8System Fan1

9System Fan3

No. Item / per node

10 System Fan4

11 System Fan5

12 System Fan6

13 Switch Board (2U4G-C621WS / 2U4G-

EPYC only)

14 Riser Card Slot3 (GPU Card)

15 Riser Card Slot2 (GPU Card)

16 Riser Card Slot1 (GPU Card)

17 2.5" HDD Trays

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