ASROCK B550D4M User manual

B550D4M
User Manual
Version 1.0
Published February 2022
Copyright©2022 ASRock Rack INC. All rights reserved.

Version 1.0
Published February 2022
Copyright©2022 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.)
e terms HDMI™ and HDMI High-Denition Multimedia Interface, and the HDMI
logo are trademarks or registered trademarks of HDMI Licensing LLC in the United
States and other countries.

Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Unique Features 6
1.4 Motherboard Layout 7
1.5 Onboard LED Indicators 10
1.6 I/O Panel 12
1.7 Block Diagram 14
Chapter 2 Installation 15
2.1 Screw Holes 15
2.2 Pre-installation Precautions 15
2.3 Installing the CPU 16
2.4 Installing the CPU Fan and Heatsink 18
2.5 Installing Memory Modules (DIMM) 21
2.6 Expansion Slots (PCI Express Slots) 23
2.7 Jumper Setup 24
2.8 Onboard Headers and Connectors 25
2.9 Dr. Debug 31
2.10 Unit Identication purpose LED/Switch 37
2.11 Driver Installation Guide 37
2.12 M.2 SSD Module Installation Guide 38
Chapter 3 UEFI Setup Utility 40
3.1 Introduction 40

3.1.1 UEFI Menu Bar 40
3.1.2 Navigation Keys 41
3.2 Main Screen 42
3.3 Advanced Screen 43
3.3.1 CPU Conguration 44
3.3.2 Chipset Conguration 45
3.3.3 Storage Conguration 46
3.3.4 NVMe Conguration 47
3.3.5 ACPI Conguration 48
3.3.6 USB Conguration 49
3.3.7 Super IO Conguration 50
3.3.8 Serial Port Console Redirection 52
3.3.9 H/W Monitor 55
3.3.10 Network Stack Conguration 56
3.3.11 RAM Disk Conguration 58
3.3.12 Tls Auth Conguration 59
3.3.13 AMD PBS 60
3.3.14 AMD Overclocking 63
3.3.15 AMD CBS 64
3.3.16 iSCSI Conguration 65
3.3.17 Instant Flash 66
3.4 Server Mgmt 67
3.4.1 System Event Log 68
3.4.2 BMC Network Conguration 69

3.4.3 BMC Tools 71
3.5 Security 72
3.5.1 Key Management 73
3.6 Boot Screen 76
3.6.1 CSM Parameters 78
3.7 Exit Screen 80
Chapter 4 Software Support 81
4.1 Install Operating System 81
4.2 Support CD Information 81
4.2.1 Running The Support CD 81
4.2.2 Drivers Menu 81
4.2.3 Utilities Menu 81
4.2.4 Contact Information 81
Chapter 5 Troubleshooting 82
5.1 Troubleshooting Procedures 82
5.2 Technical Support Procedures 84
5.3 Returning Merchandise for Service 84

B550D4M
PB 1
English
Chapter 1 Introduction
ank you for purchasing ASRock Rack B550D4M 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 B550D4M Motherboard
(ATX Form Factor: 9.6-in x 12-in, 24.4 cm x 30.5 cm)
• Quick Installation Guide
• 1 x I/O Shield
• 1 x Screw for M.2 Socket
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
B550D4M
MB Physical Status
Form Factor ATX
Dimension 12"x9.6" (30.5 cm x 24.4 cm)
Processor System
CPU AMD Ryzen™ 5000 Series Desktop Processors
AMD Ryzen™ 5000 and 4000 G-Series Desktop Processors with
Radeon™ Graphics
AMD Ryzen™ PRO 5000, 4000 and 3000 Series* Desktop Processors
3rd Gen AMD Ryzen™ Desktop Processors
*Not Compatible with AMD Ryzen™ 3000 series processors with Radeon™ Graphics
Socket AM4 PGA 1331
Chipset AMD B550
Max ermal
Design Power
TDP 105W
System Memory
Capacity - 4 x 288-pin DDR4 DIMM slots (2DPC)
- Support up to 128GB DDR4 ECC/Non-ECC UDIMM
Type - Dual Channel DDR4 memory technology
- Support DDR4 ECC*/Non-ECC UDIMM
*For AMD Ryzen™ Desktop Processors with Radeon™ Graphics, ECC support is only
with Processors with PRO technologies.
DIMM Size Per
DIMM
- ECC/Non-ECC UDIMM: 32GB, 16GB, 8GB
DIMM Frequency - ECC/Non-ECC UDIMM: 3200/2933/2666/2400/2133 MHz
Voltage 1.2V
Expansion Slot
PCIe 4.0/3.0 x 16 Vermeer/Matisse:
PCIE6: Gen4 x8 link [CPU]
Cezanne/Renoir:
PCIE6: Gen3 x8 link [CPU]
PCIe 3.0 x 8 Vermeer/Matisse:
PCIE4: Gen3 x4 link [CPU]
Cezanne/Renoir:
PCIE4: Gen3 x4 link [CPU]
Mezzanine Slot 1 M-key (PCIe3.0 x4 or SATA 6Gb/s), supports 22110/2280/2242
form factor [FCH]
Storage
SATA Controller B550: 4 x SATA3 6.0 Gb/s (7-pin), support RAID 0/1/10
Additional SATA
Controller
ASM 1061: 2 x SATA3 6.0 Gb/s (7-pin)
M.2 1 (PCIE 3.0 x4/SATA3 (Type 2242/2280/22110)

B550D4M
2 3
English
Ethernet
Interface 1000 /100 /10 Mbps by Intel I210-AT
LAN Controller - 2 x RJ45 GLAN by Intel® I210-AT
- 1 x RJ45 Dedicated IPMI LAN port
- Supports Wake-On-LAN
- Supports Energy Ecient Ethernet 802.3az
- Supports PXE
Management
BMC Controller ASPEED AST2500
Graphics
Controller ASPEED AST2500:
1 DB15, 1 (15-pin) header
AMD Ryzen™ Desktop Processors with Radeon™ Graphics:
1 HDMI
VRAM DDR4 16MB
Rear Panel I/O
VGA Port 1 x D-Sub
*If the FRNT_VGA1 header is in use, there will be no signal on the rear VGA port.
Serial port 1 x COM port
USB 3.2 Gen1 Port 2 (5Gbps)
USB 3.2 Gen2 Port 2 (10Gbps)
LAN Port - 2 + 1 x RJ45 Gigabit Ethernet LAN port
- LAN Ports with LED (ACT/LINK LED and SPEED LED)
HDMI 1.4 1
UID Switch 1
UID LED 1
Internal Connector
Auxiliary Panel
Header
1 (includes chassis intrusion, and front LAN LED)
Front Panel 1
TPM Header 1 (17-pin, LPC)
TPM-SPI Header 1 (13-pin, SPI)
Fan Header 6 Fans x 6-pin
ATX Power 1 x (24-pin) + 1 x (8-pin) + 1 x (4-pin)
USB 3.2 Gen1
Header
1 (supports 2 USB 3.2 Gen1 ports)
Type A USB 3.2
Gen1 Port
1
USB 2.0 Header 1 (supports 2 USB 2.0 ports)
ermal Sensor
Header
1
Speaker 1
Front VGA Header 1

4 5
English
COM Header 1
PSU SMB 1
IPMB Header 1
Smbus from BMC 1
80 Debug Port LED 1
Buzzer 1
ClearCMOS 1 (short pad)
OH/FanFail LED 6 (only Fan Fail LED)
System BIOS
BIOS Ty pe 32MB AMI UEFI Legal BIOS
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/DDR temperature sensing
- MB/Card side temperature sensing
Fan - Fan Tachometer
- Quiet Fan (Allow Chassis Fan Speed Auto-Adjust by CPU
Temperature)
- Fan Multi-Speed Control
Voltage Voltage Monitoring: 3VSB, 5VSB, VCPU, VSOC, VCCM, APU
VDDP, 1.05V_PROM_S5, 2.5V_PROM, 1.05V_PROM_RUN, BAT,
3V, 5V, 12V
Support OS
OS Microso® Windows®:
- Windows 10 (64 bit)
- Windows 11 (64 bit)
Linux®:
- CentOs 8.4 (64 bit)
- Ubuntu 21.04 (64 bit) / 18.04.5 (64 bit)
Hypervisor:
- VMWare® ESXi 7.0 U2a
- vSphere 7.0 U2b
* On the Windows system, the RAID mode supports UEFI Boot only.
* e Linux system doesn't support the RAID Mode.
* 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.

B550D4M
4 5
English
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
LAN 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.

6 7
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.

B550D4M
6 7
English
1.4 Motherboard Layout
24.4cm (9.6 in)
30.5cm (12 in)
ATXPWR1
VGA
DDR4_A2 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
DDR4_B2 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin moule)
USB 3.2
Gen1
T: USB3_2
B: USB3_1
IPMI_LAN
USB3_5_6
PCIE6
PCIE4
ASPEED
AST2500
B550D4M
Socket
AM4 PGA 1331
SATA_1
1
AUX_PANEL1
HDLED RESET
PLED PWRBTN
PANEL1
1
1
TPM1
BUZZER1
RoHS
23 16
9
10
12
14
15
16
17
18
24
13
29
31
7
8
FAN1
1
FRNT_VGA1
FAN2
ATX12V2
FAN5
FAN3
FAN6
FAN4
USB_1_2
1
USB3_7
1
SPEAKER1
COM2
1
Dr.
Debug
1
T 1
R
35
AMD
B550
BIOS
ROM
1
TPM_BIOS_PH1
1
202128
USB 3.2
Gen2
T: USB3_4
B: USB3_3
LAN1
COM1
LAN2
HDMI1
NUT110_2
M2_2
SATA_5
SATA_6
23
1
IPMB1
BMC_SMB1
NUT80_2
NUT42_2
BMC
ROM
PSU_SMB1
UID1
4
19222627
30
ATX12V1
BATTERY
SATA_2
SATA_3
SATA_4
1
NCSI_SEL1
MEZZ_A1
UID1
UID_LED1
5
11
CLRCMOS1
25
33
32
36
34

8 9
English
No. Description
1Front VGA Header (FRNT_VGA1)*
2System Fan Connector (FAN1)
3ATX 12V Power Connector (ATX12V1)
42 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1, Blue)**
5PSU SMBus (PSU_SMB1)
6ATX Power Connector (ATXPWR1)
72 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2, White)**
8AM4 PGA 1331 Socket
9System Fan Connector (FAN2)
10 SATA3 Connectors (SATA_2)(Upper), (SATA_1)(Lower)
11 SATA3 Connectors (SATA_4)(Upper), (SATA_3)(Lower)
12 System Fan Connector (FAN3)
13 System Fan Connector (FAN5)
14 ATX 4-Pin Power Connector (ATX12V2)
15 System Fan Connector (FAN6)
16 System Fan Connector (FAN4)
17 USB 3.2 Gen1 Header (USB3_5_6)
18 System Panel Header (PANEL1)
19 Auxiliary Panel Header (AUX_PANEL1)
20 USB 2.0 Header (USB_1_2)
21 Vertical Type A USB 3.2 Gen1 (USB3_7)
22 SATA3 Connector (SATA_6)
23 SATA3 Connector (SATA_5)
24 TPM Header (TPM1)
25 Clear CMOS Pad (CLRCMOS1)
26 Intelligent Platform Management Bus Header (IPMB1)
27 BMC SMBus Header (BMC_SMB1)
28 Speaker Header (SPEAKER1)
29 COM Port Header (COM2)
30 M.2 Socket (M2_2) (Type 2242 / 2280 / 22110)
31 ermal Sensor Header (TR1)
32 PCI Express 4.0(Vermeer/Matisse) / 3.0(Cezanne/Renoir) x8 Slot
(PCIE4)

B550D4M
8 9
English
No. Description
33 NCSI Mode Jumper (NCSI_SEL1)
34 PCI Express 4.0(Vermeer/Matisse) / 3.0(Cezanne/Renoir) x16 Slot
(PCIE6)
35 TPM-SPI Header (TPM_BIOS_PH1)
36 Mezzanine Slot (MEZZ_A1)
*If the FRNT_VGA1 header is in use, there will be no signal on the rear VGA port.
**For DIMM installation and conguration instructions, please see p.20 (Installation of Memory Modules
(DIMM)) for more details.

10 11
English
1.5 Onboard LED Indicators
1
1 2
3
4
5
6
7
8
1
B550D4M
AMD
B550
ATXPWR1
DDR4_A2 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
DDR4_B2 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin moule)
Socket
AM4 PGA 1331
FAN2
1
SATA_3
SATA_4
1
9

B550D4M
10 11
English
No. Item Status Description
1FAN_LED1 Amber FAN1 failed
2 SB_PWR1 Green STB PWR ready
3FAN_LED2 Amber FAN2 failed
4FAN_LED3 Amber FAN3 failed
5FAN_LED5 Amber FAN5 failed
6FAN_LED6 Amber FAN6 failed
7FAN_LED4 Amber FAN4 failed
8BMC_LED1 Green BMC heartbeat LED
9UID_LED1 Blue UID LED

12 13
English
1.6 I/O Panel
46
28
7
135
910
No. Description No. Description
1 Serial Port (COM1) 6 USB 3.2 Gen2 Ports (USB3_3_4)
2 VGA Port (VGA1)* 7 LAN RJ-45 Port (LAN2)****
3 LAN RJ-45 Port (IPMI_LAN)*** 8 HDMI 1.4 Port (HDMI1)**
4 USB 3.2 Gen1 Ports (USB3_1_2) 9 UID Switch (UID1)
5 LAN RJ-45 Port (LAN1)**** 10 UID LED (UID_LED1)
*If the FRNT_VGA1 header is in use, there will be no signal on the rear VGA port.
**e HDMI1 port is only supported with APU (Cezanne/Renoir) is installed.
LAN Port LED Indications
***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 1G bps connection
ACT/LINK LED
SPEED LED
LAN Port

B550D4M
12 13
English
LAN Port LED Indications
****ere are two LED next to the LAN port. Please refer to the table below for the LAN
port LED indications.
LAN Port LED Indications
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection or
no link
Blinking Orange Data Activity Yellow 100Mbps connection
On Link Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port

14 15
English
1.7 Block Diagram
RTL8211E
RG MI I
VIDEO DAC
UART
UART1
UART0
MAC1
UART
LPC
MAC2
PCIE
PCIE
PCIE/SATA
PCIE
PCIE
LPC
PCIE GEN2 x1
SPI
USB2.0USB
SPI
SPI
SPI
PCIE GEN3 x4 / SATA GEN3
PCIE GEN2 x1
SATA
SATA
SATA
SATA
USB3.2 GEN2 / USB2.0
USB
USB
USB2.0
USB3.2 GEN1 / USB2.0
SATA
SATA
SATA
SATA
USB
LPC
SPI
FAN
LPC
SPI
DDR4/V RAM
DDR4
DDR4
CHANNEL-B
CHANNEL-A
ECC/nonECC-UDIMM
DDR4
DDR4
ECC/ nonECC-UDI MM
ECC/nonECC-UDIMM
NCSI
NCSI
DISPLAYPORT
ECC/ nonECC-UDI MM
ECC/nonECC-UDIMM
USB3.2 GEN1 / USB2.0
USB TYPE-A
USB TYPE-A
ECC/ nonECC-UDI MM
PCIE GEN4 x8
AMD PROCESSOR
Socket AM4 (PGA 1331)
Support Max：105 W
DDR4 DRAM
LPC
PCIE
USB
VIDEO DAC
AST2500
PCIE SLOT6
SPI FLASH
(512Mb)
SIO
NCT6796D-R
USB TYPE-A
HDMI
GIG A LAN2
OCP MEZZ. CONN.TYPE-A
D-SUB
USB TYPE-A
USB 3.2 GEN1 HEADER
SATA
M.2_2
IPMI LAN
USB TYPE-A
B550
FAN 6PIN x6
COM CONNECTOR
BIOS
SPI FLASH
32MB
USB 2.0 Header 2PORT
COM HEADER
LPC TPM Header
SPI TPM Header
PCIE SLOT4
GIG A LAN1
ECC/nonECC-UDIMM
PCIE GEN4 x8
SATA
SATA
SATA
ASM1061
ECC/ nonECC-UDI MM
PCIE GEN3 x4
I210-AT
I210-AT
SATA
SATA
PCIE GEN2 x1
PCIE GEN2 x1
PCIE GEN3 x4
USB3.2 GEN1 / USB2.0
UP-STREAM LINK
DOWN-STREAM LINK
PCIE
USB
DISPLAY
PCIE
USB
SPI
SW ITCH