ASROCK Rack ROMED6U-2L2T User manual

ROMED6U-2L2T
User Manual
Version 1.0
Published October 2020
Copyright©2020 ASRock Rack INC. All rights reserved.

Version 1.0
Published October 2020
Copyright©2020 ASRock Rack Inc. All rights reserved.
Copyright Notice:
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 ASRock Rack Inc.
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:
Specications 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 ASRock Rack. ASRock Rack assumes no responsibility
for any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock Rack does 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 ASRock Rack, its 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 ASRock
Rack has 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”
ASRock Rack’s Website: www.ASRockRack.com

Contact Information
If you need to contact ASRock Rack or want to know more about ASRock Rack, you’re
welcome to visit ASRock Rack’s website at www.ASRockRack.com; or you may contact
your dealer for further information.
ASRock Rack Incorporation
6F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District,
Taipei City 112, Taiwan (R.O.C.)

Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Unique Features 5
1.4 Motherboard Layout 6
1.5 Onboard LED Indicators 10
1.6 I/O Panel 11
1.7 Block Diagram 13
Chapter 2 Installation 14
2.1 Screw Holes 14
2.2 Pre-installation Precautions 14
2.3 Installing the CPU 15
2.4 Installation of Memory Modules (DIMM) 19
2.5 Expansion Slots (PCI Express Slots) 21
2.6 Onboard Headers and Connectors 22
2.7 ATX PSU / DC-IN Power Connections 29
2.8 Unit Identication purpose LED/Switch 30
2.9 Driver Installation Guide 30
2.10 M.2_SSD (NGFF) Module Installation Guide 31
Chapter 3 UEFI Setup Utility 32
3.1 Introduction 32
3.1.1 UEFI Menu Bar 32
3.1.2 Navigation Keys 33

3.2 Main Screen 34
3.3 Advanced Screen 35
3.3.1 CPU Conguration 36
3.3.2 Chipset Conguration 37
3.3.3 Storage Conguration 40
3.3.4 ACPI Conguration 41
3.3.5 USB Conguration 42
3.3.6 Super IO Conguration 43
3.3.7 Serial Port Console Redirection 44
3.3.8 H/W Monitor 47
3.3.9 PCI Subsystem Settings 48
3.3.10 AMD CBS 49
3.3.11 AMD PBS 50
3.3.12 PSP Firmware Versions 51
3.3.13 Instant Flash 52
3.4 Server Mgmt 53
3.4.1 System Event Log 54
3.4.2 BMC Network Conguration 55
3.4.2 BMC Tools 57
3.5 Security 58
3.5.1 Key Management 59
3.6 Boot Screen 62
3.6.1 CSM Parameters 64
3.7 Event Logs 66

3.8 Exit Screen 68
Chapter 4 Software Support 69
4.1 Install Operating System 69
4.2 Support CD Information 69
4.2.1 Running The Support CD 69
4.2.2 Drivers Menu 69
4.2.3 Utilities Menu 69
4.2.4 Contact Information 69
Chapter 5 Troubleshooting 70
5.1 Troubleshooting Procedures 70
5.2 Technical Support Procedures 72
5.3 Returning Merchandise for Service 72

ROMED6U-2L2T
PB 1
English
Chapter 1 Introduction
ank you for purchasing ASRock Rack ROMED6U-2L2T motherboard, a reliable
motherboard produced under ASRock Rack’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock Rack’s
commitment to quality and endurance.
In this manual, chapter 1 and 2 contains introduction of the motherboard and step-
by-step guide to the hardware installation. Chapter 3 and 4 contains the conguration
guide to BIOS setup and information of the Support CD.
1.1 Package Contents
• ASRock Rack ROMED6U-2L2T Motherboard
(microATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm)
• Quick Installation Guide
• 1 x I/O Shield
• 2 x Screws for M.2 Sockets
• 1 x SATA3 Cable (60cm)
• 1 x Mini SAS HD to 4 SATA Cable (60cm)
• 1 x ATX 4P to 24P Power Cable (8cm)
• 1 x SATA Power Cable (80cm)
If any items are missing or appear damaged, contact your authorized dealer.
Because the motherboard specications and the BIOS soware might be updated, the con-
tent of this manual will be subject to change without notice. In case any modications of
this manual occur, the updated version will be available on ASRock Rack website without
further notice. You may nd the latest memory and CPU support lists on ASRock Rack
website as well. ASRock Rack’s Website: www.ASRockRack.com
If you require technical support related to this motherboard, please visit our website for
specic information about the model you are using.
http://www.asrockrack.com/support/

2 3
English
1.2 Specications
ROMED6U-2L2T
MB Physical Status
Form Factor microATX
Dimension 9.6'' x 9.6'' (24.4 cm x 24.4 cm)
Processor System
CPU AMD EPYC™ 7002 Series Processor
Socket Single Socket SP3 (LGA4094)
Chipset N/A
ermal Design
Power
280W
System Memory
Type - Six Channel DDR4 memory technology
- Supports DDR4 RDIMM, LRDIMM and NVDIMM
DIMM Size Per
DIMM
- RDIMM: 64GB, 32GB, 16GB, 8GB
- LRDIMM: 128GB, 64GB, 32GB
- NVDIMM: 32GB
DIMM Frequency - RDIMM: 3200MHz
- LRDIMM: 2666MHz
- NVDIMM: 2666MHz
Voltage 1.2V
Expansion Slot
PCIe 4.0 x 16 PCIE7: Gen4 x16 link
PCIE6: Gen4 x16 link
PCIE5: Gen4 x16 link
PCIE4: Gen4 x16 link
Storage
Slimline SLIM1: PCIe Gen4 x8 (Support SATA ) SLIM2: PCIe Gen4 x8
(Support SATA ) SLIM3: PCIe Gen4 x8
SATA 2x 7Pin SATA3 , 12 x SATA3 6.0 Gb/s (from mini SAS HD ,
Gen3)
M.2 Slot 2 (M2_1:2280, M2_2:2260 Support SATA x1 or PCIE x4)
Ethernet
Interface 10G by Intel X710-AT2 ; 1000 /100 /10 Mbps by Intel i210
LAN Controller - 2 x RJ45 10G base-T by Intel® X710-AT2
- 1 x RJ45 1G base-T by Intel® I210-AT2
- 1 x RJ45 Dedicated IPMI LAN port by RTL8211E
- Supports Wake-On-LAN
- Supports Energy Ecient Ethernet 802.3az
- Supports Dual LAN with Teaming function
- Supports PXE
- LAN1 supports NCSI

ROMED6U-2L2T
2 3
English
Management
BMC Controller ASPEED AST2500
IPMI Dedicated
GLAN
1 x Realtek RTL8211E for dedicated management GLAN
Features Watch Dog
NMI
Graphics
Controller ASPEED AST2500
VRAM DDR4 256MB
Rear Panel I/O
VGA Port 1 x D-Sub
USB 3.2 Gen1 Port 2
LAN Port - 4+1 RJ45 Gigabit Ethernet LAN port
- LAN Ports with LED (ACT/LINK LED and SPEED LED)
UID 1
Internal Connector
Auxiliary Panel
Header
1 (includes chassis intrusion, location button & LED, and front
LAN LED)
TPMS Header 1
IPMB Header 1
Fan Header 6 Fans x 4-pin
ATX Power 1 x (8-pin) + 1 x (8-pin) + 1 x (4-pin)
SATA Power 1 x (4-pin)
USB 3.2 Gen1
Header
1 (supports 2 USB 3.2 Gen1 ports)
M.2 2 (M2_1:2280 , M2_2:2260 Support SATA x1 or PCIE x4)
Slimline 3 (SLIM1 / SLIM2: PCIEx8 or SATA Gen3 x8; SLIM3: PCIEx8)
MiniSAS HD 2 (MSAS_HD0: SATA Gen3 x8, MSAS_HD1: SATA Gen3 x4)
Smbus from BMC 1
PSU SMB 1
NMI button 1
SGPIO Header 3
ermal Sensor
Header
1
Speaker(4pin) 1
ClearCMOS 1 (short pad)
CPU_HSBP1 1
Front LAN LED 1
OH/FanFail LED 6 (only Fan Fail LED)
COM Header 1
Panel Header 1
System BIOS
BIOS Ty pe 32MB AMI UEFI Legal BIOS

4 5
English
BIOS Features - Plug and Play (PnP)
- ACPI 2.0 Compliance Wake Up Events
- SMBIOS 2.8 Support
- ASRock Rack Instant Flash
Hardware Monitor
Temperature - CPU Temperature Sensing
- MB/Card side/TR1 Temperature Sensing
Fan - Fan Tachometer
- CPU Quiet Fan (Allow CPU Fan Speed Auto-Adjust by CPU
Temperature)
- Fan Multi-Speed Control
Voltage Voltage Monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM,
+BAT, 3VSB, 5VSB
Support OS
OS Microso® Windows®
- Server 2016 (64 bit)
- Server 2019 (64 bit)
Linux®
- RedHat Enterprise Linux Server 8.0 (64 bit) / 7.6 (64 bit)
- CentOs 8.0 (64 bit) / 7.6 ( 64 bit)
- SUSE SLES 15.1 (64 bit) / 12.4 (64 bit)
- UBuntu 18.04.3 (64 bit) / 16.04.6 (64 bit)
- CITRIX Hypervisor 8.1.0
Virtual
- VMWare ESXi 6.5 u3 / 6.7 u3
- vSphere 6.5 u3 / 6.7 u3
* Please refer to our website for the latest OS support list.
Environment
Temperature Operation temperature: 10°C ~ 35°C / Non operation
temperature: -40°C ~ 70°C
NOTE: Please refer to our website for the latest specications.
is motherboard supports Wake from on Board LAN. To use this function, please make
sure that the “Wake on Magic Packet from power o state” is enabled in Device Manager
> Intel® Ethernet Connection > Power Management. And the “PCI Devices Power On” is
enabled in UEFI SETUP UTILITY > Advanced > ACPI Conguration. Aer that, onboard
LAN1&4 can wake up S5 under OS.
If you install Intel® LAN utility or Marvell SATA utility, this motherboard may fail Win-
dows® Hardware Quality Lab (WHQL) certication tests. If you install the drivers only, it
will pass the WHQL tests.

ROMED6U-2L2T
4 5
English
1.3 Unique Features
ASRock Rack Instant Flash is a BIOS ash utility embedded in Flash ROM. is con-
venient BIOS update tool allows you to update system BIOS without entering operat-
ing systems rst like MS-DOS or Windows®. With this utility, you can press the <F6>
key during the POST or the <F2> key to enter into the BIOS setup menu to access
ASRock Rack Instant Flash. Just launch this tool and save the new BIOS le to your
USB ash drive, oppy disk or hard drive, then you can update your BIOS only in a
few clicks without preparing an additional oppy diskette or other complicated ash
utility. Please be noted that the USB ash drive or hard drive must use FAT32/16/12
le system.

6 7
English
1.4 Motherboard Layout
24.4cm (9.6 in)
VGA1
DDR4_G1 (64 bit, 288-pin module)
DDR4_H1 (64 bit, 288-pin module)
ATX12V2
USB 3.2 G en1
T: USB2
B: USB1
IPMI_LAN
LAN3
UID1
PCIE7
M2_1
NUT80
HDLED RESET
PLED PWRBTN
PANEL1
1
1
SPEAKER1
1
T 1
R
1
IPMB_1
1
ASPEED
AST2500
ATX12V1
BMC
ROM
LGA4094
Socket SP3
PSU_SMB1
1
LAN4
DDR4_D1 (64 bit, 288-pin module)
DDR4_C1 (64 bit, 288-pin module)
FAN4
BATTERY1
ATX4PIN1
SATA_PWR1
PWM_CFG1
NMI_BTN1
24.4Cm (9.6 in)
12
3456 8
9
10
11
12
13
14
15
16
17
2324262728
CLRMOS1
25
DDR4_E1 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
PCIE6
PCIE5
PCIE4
LAN1
LAN2
FAN3FAN2
FAN1
FAN5
FAN6
SLIM3
SLIM2
SLIM1
MSAS_HD0
MSAS_HD1
Super
I/O
Intel
X710-AT2
Intel
I210-AT2
Intel
I210-AT2
1
SATA_SGPIO3
1
SATA_SGPIO2
1
SATA_SGPIO1
1
LED_LAN3_4
USB3_3_4
1
COM1
TPMS1
1
1
AUX_PANEL1
BMC_SMB1
ROMED6U-2L2T
BIOS
ROM
7
18
19
20
21
22303132 2933353637 3438
CPU_HSBP1
SATA0
SATA1
Top View

ROMED6U-2L2T
6 7
English
M2_2
39
NUT60_2
Bottom View

8 9
English
No. Description
1 ATX 12V Power Connector (ATX12V2)
2 ATX 12V Power Connector (ATX12V1)
3 ATX 4-PIN Power Connector (ATX4PIN1)**
4 PSU SMBus Header (PSU_SMB1)
5 PWM Conguration Header (PWM_CFG1)
6 System Fan Connector (FAN1)
7 System Fan Connector (FAN2)
8 System Fan Connector (FAN3)
9 System Fan Connector (FAN4)
10 System Fan Connector (FAN5)
11 System Fan Connector (FAN6)
12 3 x 288-pin DDR4 DIMM Slots (DDR4_E1, DDR4_G1, DDR4_H1)*
13 3 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_C1, DDR4_D1)*
14 SATA Power Connector (DC-IN Mode) (SATAPWR1)**
15 M.2 Socket (M2_1) (Type 2280)
16 Slimline NVMe Connector (SLIM3)
17 Slimline NVMe Connector (SLIM2)
18 Slimline NVMe Connector (SLIM1) (Right-Angled)
19 SATA3 Connector (SATA1)
20 Mini-SAS HD Connector (MSAS_HD0) (Right-Angled)
21 Mini-SAS HD Connector (MSAS_HD1) (Right-Angled)
22 Speaker Header (SPEAKER1)
23 System Panel Header (PANEL1)
24 Backplane PCI Express Hot-Plug Connector (CPU1_HSBP1)
25 SATA SGPIO Connector (SATA_SGPIO3)
26 SATA SGPIO Connector (SATA_SGPIO2)
27 SATA SGPIO Connector (SATA_SGPIO1)
28 SATA3 Connector (SATA0)
29 Front LAN LED Connector (LED_LAN3_4)
30 USB 3.2 Gen1 Header (USB3_3_4) (Right-Angled)
31 Clear CMOS Pad (CLRMOS1)
32 COM Port Header (COM1)
33 TPMS Header (TPMS1)

8 9
No. Description
34 ermal Sensor Header (TR1)
35 Auxiliary Panel Header (AUX_PANEL1)
36 BMC SMBus Header (BMC_SMB1)
37 Intelligent Platform Management Bus Header (IPMB_1)
38 Non Maskable Interrupt Button (NMI_BTN1)
39 M.2 Socket (M2_2) (Type 2260)
*For DIMM installation and conguration instructions, please see p.19 (Installation of Memory Modules
(DIMM)) for more details.
**Caution: Misconnection between the ATX4PIN1 and the SATA_PWR1 connectors may permanently damage
the motherboard.

10 11
English
1.5 Onboard LED Indicators
DDR4_G1 (64 bit, 288-pin module)
DDR4_H1 (64 bit, 288-pin module)
LGA4094
Socket SP3
1
DDR4_D1 (64 bit, 288-pin module)
DDR4_C1 (64 bit, 288-pin module)
23 22 21 20 19 18 24
262728 25
DDR4_E1 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
ROMED6U-2L2T
12
3
4
6
5
7
8
No. Item Status Description
1FAN_LED1 Red FAN1 failed
2FAN_LED2 Red FAN2 failed
3FAN_LED3 Red FAN3 failed
4FAN_LED4 Red FAN4 failed
5FAN_LED5 Red FAN5 failed
6FAN_LED6 Red FAN6 failed
7BMC_LED1 Green BMC heartbeat LED
8 SB_PWR1 Green STB PWR ready

ROMED6U-2L2T
10 11
English
1.6 I/O Panel
2
3
167
8
4
5
No. Description No. Description
1 UID Switch (UID1) 5 1G LAN RJ-45 Port (LAN4)**
2 USB 3.2 Gen1 Ports (USB3_1_2) 6 VGA Port (VGA1)
3 LAN RJ-45 Port (IPMI_LAN1)* 7 10G LAN RJ-45 Port (LAN1)**
4 1G LAN RJ-45 Port (LAN3)** 8 10G LAN RJ-45 Port (LAN2)**
*ere are two LED next to the LAN port. Please refer to the table below for the LAN port
LED indications.
Dedicated IPMI LAN Port LED Indications
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10M bps connection or no
link
Blinking Yellow Data Activity Yellow 100M bps connection
On Link Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port

12 13
English
**ere are two LEDs on each LAN port. Please refer to the table below for the LAN port
LED indications.
1G LAN Port (LAN3, LAN4) LED Indications
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection or
no link
Blinking Green Data Activity Yellow 100Mbps connection
On Link Green 1Gbps connection
10G LAN Port (LAN1, LAN2) LED Indications
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 100Mbps connection or
no link
Blinking Yellow Data Activity Yellow 1Gbps connection
On Link Green 10Gbps connection
ACT/LINK LED
SPEED LED
LAN Port
SPEED LED
ACT/LINK LED

ROMED6U-2L2T
12 13
English
1.7 Block Diagram
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
R/LRDIMM
6 DIMM Slots
1 x DDR4 LRDIMM/RDIMM
AMD Family 17h Processor
DDR4DDR4DDR4
CPU
AMD EPYC 700x
PCI-E
Port G0 Port G1 Port G3.0~7
REALTEK RTL8211E 10/100/1G PHY
DDR4DDR4DDR4
1 x DDR4 LRDIMM/RDIMM 1 x DDR4 LRDIMM/RDIMM 1 x DDR4 LRDIMM/RDIMM
PCIe Gen4 x16
PCI-E
x8
Port P0. 0~7 Port P2
DDR4 DRAM (512MB)
BMC
AST2500
Ethernet
10/100/1000
Video
DAC
BMC & VRAM
PCI-Exp ress
USB
1.1 &
2.0
LPC
MAC2
SPI
SPI FLASH (512Mb)
PCI-E Gen3
x1
LPC
PCIE Gen3 x 1
LPC
USB
USB2.0 x 2
TPM 2.0
PCI-E
P1.12
PCIE Gen3 x 1
Port G2.0~3
x16
1 x DDR4 LRDIMM/RDIMM 1 x DDR4 LRDIMM/RDIMM
NCSI
USB 3 .2
USB3.2 GEN1
F_USB1
SIO NCT6779
Ethernet
10/100/1000
MAC1
SLIM3
Port G3.8~15
PCIe Gen4 x8
Port P0. 8~15
Slimline Conn.
x8
PCIE Gen4 x 16
SLIM1
Slimline Conn.
SATA Gen3 x 8 or PCIe Gen4 x4 *2
Support: 1. SATA*8 2. NVMe*2
SATA Gen3 x 2
PCIe Gen4 x16
PCIE Gen4 x 16
PCIE7 PCIE6
PCIE5 PCIE4
SATA 7Pin
PCIe Gen4 x4
M2_1
M.2 Socket
Support: 1. SATA 2. PCIE
MSAS_HD0
Mini SAS HD
SATA GEN3 x8
Port P3
PCI-E
x16
PCI-E
x8
Port P1. 0~7
x4
Port P1. 8~11
x1 x1
Port P1 13
Port P1 14
SLIM2
Slimline Conn.
SATA Gen3 x 8 or PCIe Gen4 x4 *2
Support: 1. SATA*8 2. NVMe*2
PCIE Gen3 x 4
INTEL X710-AT2
10G
INTEL I210 AT2*2
1G
PCIE Gen3 x 1
R/LRDIMM R/LRDIMM
R/LRDIMM R/LRDIMM R/LRDIMM
SATA SGPIO Configuration SLIM1 use SGPIO_0 SLIM2 use SGPIO_1 SATA_8_11 , SATA12 , SATA13 use SGPIO_2 SATA_0_7 use SGPIO_3
Port G2.4~7 Port G2.8~15
M2_2
M.2 Socket MSAS_HD1
Mini SAS HD
SATA GEN3 x4
Resistance Option
Size
Project Name
Rev
Date: Sheet of
Title :
Engineer:
C
1127Thursday, November 26, 2020
Asrockrack
000-BLOCK
R1.00
ROMED6U-2L2T
Eric Hu
<Variant Name>
Size
Project Name
Rev
Date: Sheet of
Title :
Engineer:
C
1127Thursday, November 26, 2020
Asrockrack
000-BLOCK
R1.00
ROMED6U-2L2T
Eric Hu
<Variant Name>
Size
Project Name
Rev
Date: Sheet of
Title :
Engineer:
C
1127Thursday, November 26, 2020
Asrockrack
000-BLOCK
R1.00
ROMED6U-2L2T
Eric Hu
<Variant Name>

14 15
English
Chapter 2 Installation
This is a microATX form factor (9.6'' x 9.6'', 24.4 cm x 24.4 cm)motherboard. Before
you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts into it.
2.1 Screw Holes
Place screws into the holes indicated by circles to secure the motherboard to the chassis.
2.2 Pre-installation Precautions
Take note of the following precautions before you install motherboard components or
change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any components.
2. To avoid damaging the motherboard’s components due to static electricity, NEVER
place your motherboard directly on the carpet or the like. Also remember to use a
grounded wrist strap or touch a safety grounded object before you handle the compo-
nents.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded anti-static pad or in
the bag that comes with the component.
5. When placing screws into the screw holes to secure the motherboard to the chassis,
please do not over-tighten the screws! Doing so may damage the motherboard.
Make sure to unplug the power cord before installing or removing the motherboard. Failure
to do so may cause physical injuries to you and damages to motherboard components.
Do not over-tighten the screws! Doing so may damage the motherboard.
Before you install or remove any component, ensure that the power is switched o or the
power cord is detached from the power supply. Failure to do so may cause severe damage to
the motherboard, peripherals, and/or components.