ASROCK B650M-HDV/M.2 User manual

Contact Information
If you need to contact ASRock or want to know more about ASRock, you’re
welcome to visit ASRock’s website at http://www.asrock.com; or you may contact
your dealer for further information. For technical questions, please submit a
support request form at https://event.asrock.com/tsd.asp
ASRock Incorporation
e-mail: [e-mail]
ASRock EUROPE B.V.
e-mail: [e-mail]
ASRock America, Inc.
e-mail: [e-mail]
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Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Motherboard Layout 5
1.4 I/O Panel 7
1.5 Block Diagram 8
Chapter 2 Installation 9
2.1 Installing the CPU 10
2.2 Installing the CPU Fan and Heatsink 13
2.3 Installing Memory Modules (DIMM) 21
2.4 Connecting the Front Panel Header 23
2.5 Installing the Motherboard 24
2.6 Installing SATA Drives 25
2.7 Installing a Graphics Card 27
2.8 Connecting Peripheral Devices 29
2.9 Connecting the Power Connectors 30
2.10 Power On 31
2.11 Jumpers Setup 32
2.12 Onboard Headers and Connectors 33
2.13 Smart Switches 41
2.14 Post Status Checker 43
2.15 M.2 WiFi/BT PCIe WiFi Module Installation Guide 44

2.16 M.2 SSD Module Installation Guide (M2_1) 46
2.17 M.2 SSD Module Installation Guide (M2_2) 50

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B650M-HDV/M.2
Chapter 1 Introduction
ank you for purchasing ASRock B650M-HDV/M.2 motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock’s
commitment to quality and endurance.
1.1 Package Contents
• ASRock B650M-HDV/M.2 Motherboard (Micro ATX Form Factor)
• ASRock B650M-HDV/M.2 User Manual
• 2 x Serial ATA (SATA) Data Cables (Optional)
• 2 x Screws for M.2 Sockets (Optional)
Because the motherboard specications and the BIOS soware might be updated, the
content of this documentation will be subject to change without notice. In case any
modications of this documentation occur, the updated version will be available on
ASRock’s website without further notice. If you require technical support related to
this motherboard, please visit our website for specic information about the model
you are using. You may nd the latest VGA cards and CPU support list on ASRock’s
website as well. ASRock website http://www.asrock.com.

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1.2 Specications
Platform • Micro ATX Form Factor
• 2oz Copper PCB
CPU • Supports AMD Socket AM5 RyzenTM 7000 Series Processors
Chipset • AMD B650
Memory • Dual Channel DDR5 Memory Technology
• 2 x DDR5 DIMM Slots
• Supports DDR5 non-ECC, un-buered memory up to
6400+(OC)*
• Max. capacity of system memory: 64GB
• Supports Extreme Memory Prole (XMP) and EXTended
Proles for Overclocking (EXPO) memory modules
* Please refer to Memory Support List on ASRock's website for
more information. (http://www.asrock.com/)
Expansion
Slot
CPU:
• 1 x PCIe 4.0 x16 Slot (PCIE1), supports x16 mode*
• 1 x PCIe 4.0 x16 Slot (PCIE3), supports x4 mode*
Chipset:
• 1 x PCIe 4.0 x1 Slot (PCIE2)*
• 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe
WiFi module
* Supports NVMe SSD as boot disks
• Supports AMD CrossFireTM
• 15μ Gold Contact in VGA PCIe Slot (PCIE1)
Graphics • Integrated AMD RDNATM 2 graphics (Actual support may
vary by CPU)
• 1 x HDMI 2.1 TMDS/FRL 8G Compatible, supports HDR,
HDCP 2.3 and max. resolution up to 4K 120Hz
• 1 x DisplayPort 1.4 with DSC (compressed), supports HDCP
2.3 and max. resolution up to 4K 120Hz

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B650M-HDV/M.2
Audio • 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
• Nahimic Audio
LAN • 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
• Dragon RTL8125BG
• Supports Dragon 2.5G LAN Soware
- Smart Auto Adjust Bandwidth Control
- Visual User Friendly UI
- Visual Network Usage Statistics
- Optimized Default Setting for Game, Browser, and
Streaming Modes
- User Customized Priority Control
USB • 1 x USB 3.2 Gen2 Type-C (Front)
• 1 x USB 3.2 Gen1 Type-C (Rear)
• 6 x USB 3.2 Gen1 Type-A (2 Rear, 4 Front)
• 8 x USB 2.0 (4 Rear, 4 Front)
* All USB ports support ESD Protection
Rear Panel
I/O
• 2 x Antenna Mounting Points
• 1 x HDMI Port
• 1 x DisplayPort 1.4
• 1 x USB 3.2 Gen1 Type-C Port
• 2 x USB 3.2 Gen1 Type-A Ports
• 4 x USB 2.0 Ports
• 1 x RJ-45 LAN Port
• 1 x BIOS Flashback Button
• HD Audio Jacks: Line in / Front Speaker / Microphone
Storage CPU:
• 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280
PCIe Gen5x4 (128 Gb/s) mode*
Chipset:
• 1 x Hyper M.2 Socket (M2_2, Key M), supports type
2260/2280 PCIe Gen4x4 (64 Gb/s) mode*
• 4 x SATA3 6.0 Gb/s Connectors
* Supports NVMe SSD as boot disks

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RAID • Supports RAID 0, RAID 1 and RAID 10 for SATA storage
devices
• Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe
storage devices*
* Requires additional M.2 NVMe expansion cards to support
RAID 10
Connector • 1 x SPI TPM Header
• 1 x Power LED and Speaker Header
• 1 x CPU Fan Connector (4-pin)*
• 3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan
Speed Control)**
• 1 x 24 pin ATX Power Connector
• 1 x 8 pin 12V Power Connector
• 1 x Front Panel Audio Connector
• 1 x underbolt AIC Connector (5-pin) (Supports ASRock
underbolt 4 AIC Card)
• 2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
• 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
• 1 x Front Panel Type C USB 3.2 Gen2 Header
* CPU_FAN1 supports the fan power up to 1A (12W).
** CHA_FAN1~3/WP support the fan power up to 2A (24W).
** CHA_FAN1~3/WP can auto detect if 3-pin or 4-pin fan is in
use.
BIOS
Feature
• AMI UEFI Legal BIOS with GUI support
OS • Microso® Windows® 10 64-bit / 11 64-bit
Certica-
tions
• FCC, CE
• ErP/EuP ready (ErP/EuP ready power supply is required)
Please realize that there is a certain risk involved with overclocking, including
adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using
third-party overclocking tools. Overclocking may aect your system’s stability, or
even cause damage to the components and devices of your system. It should be done
at your own risk and expense. We are not responsible for possible damage caused by
overclocking.
* For detailed product information, please visit our website: http://www.asrock.com

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B650M-HDV/M.2
1.3 Motherboard Layout

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No. Description
1 8 pin 12V Power Connector (ATX12V1)
2 CPU Fan Connector (CPU_FAN1)
3 2 x 288-pin DDR5 DIMM Slots (DDR5_A1, DDR5_B1)
4 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)
5 ATX Power Connector (ATXPWR1)
6 Front Panel Type C USB 3.2 Gen2 Header (USB32_TC2)
7 USB 3.2 Gen1 Header (USB32_3_4)
8 SPI TPM Header (SPI_TPM_J1)
9 USB 3.2 Gen1 Header (USB32_5_6)
10 SATA3 Connectors (SATA3_2)(Upper), (SATA3_1)(Lower)
11 SATA3 Connectors (SATA3_4)(Upper), (SATA3_3)(Lower)
12 System Panel Header (PANEL1)
13 Power LED and Speaker Header (SPK_PLED1)
14 Clear CMOS Jumper (CLRCMOS1)
15 Post Status Checker (PSC)
16 USB 2.0 Header (USB_7_8)
17 USB 2.0 Header (USB_5_6)
18 Chassis/Water Pump Fan Connector (CHA_FAN3/WP)
19 Chassis/Water Pump Fan Connector (CHA_FAN2/WP)
20 5-pin underbolt AIC Connector (TB1)
21 Front Panel Audio Header (HD_AUDIO1)

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B650M-HDV/M.2
1.4 I/O Panel
No. Description No. Description
1 2.5G LAN RJ-45 Port* 6 USB 3.2 Gen1 Type-C Port (UB32_TC_1)
2 Line In (Light Blue)** 7 USB 2.0 Ports (USB_1234)
3 Front Speaker (Lime)** 8 BIOS Flashback Button
4 Microphone (Pink)** 9 HDMI Port
5 USB 3.2 Gen1 Type-A Ports (USB32_12) 10 DisplayPort 1.4
ACT/LINK LED
SPEED LED
LAN Port
* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps/1Gbps connection
On Link Green 2.5Gbps connection
810 3
4
2
7 5
1
69
** Function of the Audio Ports in 7.1-channel Conguration:
Port Function
Light Blue (Rear panel) Rear Speaker Out
Lime (Rear panel) Front Speaker Out
Pink (Rear panel) Central /Subwoofer Speaker Out
Lime (Front panel) Side Speaker Out

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1.5 Block Diagram
Channel B Channel A
DDR5 Slot x1
DDR5 Slot x1
AZ(HD Audio)
SPI eSPI
SIO NCT6796D-S
Flash ROM Audio Codec ALC897
PCIe x16 Gen4 Slot
x4 Gen5 M.2(PCIe x4)
PCIe x4 Gen4 BUS
1st AMD PROM21 Chipset
AMD AM5 Processor LGA1718
Front USB 2.0 4 ports
x16 Gen4 x1 10Gb/s Front USB 3.2 Gen2 Type C
DP1 Displayport
5Gb/s
Rear USB 3.2 Gen1 2 ports
x4 Gen4 PCIe x4 Slot
Realtek RTL8125B 2.5G LAN
Key E WiFi
Rear USB 2.0 3 ports 480Mb/s
M.2(PCIe x4)
x4 Gen4
PCIe x1 Slot
5Gb/s
Rear USB 2.0 1port (BIOS Flash back)
480Mb/s
ReDriver
USB2.0 Hub GL852
5Gb/s
Front USB 3.2 Gen1 4 ports
5Gb/s
Rear USB 3.2 Gen1 Type C
DP0 HDMI
x1 x1
SATA 4 ports
SATA 6Gb

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B650M-HDV/M.2
is is a Micro ATX form factor motherboard. Before you install the motherboard,
study the conguration of your chassis to ensure that the motherboard ts into it.
Pre-installation Precautions
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
• Make sure to unplug the power cord before installing or removing the motherboard
components. Failure to do so may cause physical injuries and damages to motherboard
components.
• In order to avoid damage from static electricity to the motherboard’s components,
NEVER place your motherboard directly on a carpet. Also remember to use a
grounded wrist strap or touch a safety grounded object before you handle the
components.
• Hold components by the edges and do not touch the ICs.
• Whenever you uninstall any components, place them on a grounded anti-static pad or
in the bag that comes with the components.
• When placing screws to secure the motherboard to the chassis, please do not over-
tighten the screws! Doing so may damage the motherboard.
Chapter 2 Installation

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2.1 Installing the CPU
1. Before you insert the 1718-Pin CPU into the socket, please check if the PnP cap
is on the socket, if the CPU surface is unclean, or if there are any bent pins in the
socket. Do not force to insert the CPU into the socket if above situation is found.
Otherwise, the CPU will be seriously damaged.
2. Unplug all power cables before installing the CPU.
Tutorial Video
Turn your CPU to the correct orientation before opening
the CPU socket cover.

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B650M-HDV/M.2
Turn your CPU to the correct orientation before opening
the CPU socket cover.
Carefully place the CPU in as at as
possible. Do not drop it.
4
12
A
B
3

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6
7
5
Please save the cover if the processor is removed. e cover must be placed if you wish
to return the motherboard for aer service.
Make sure the black cover plate
is always in place until it pops o
when closing the socket lever.
Make sure the CPU is aligned with the
socket before locking it into place.

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B650M-HDV/M.2
2.2 Installing the CPU Fan and Heatsink
Aer you install the CPU into this motherboard, it is necessary to install a larger
heatsink and cooling fan to dissipate heat. You also need to spray thermal grease
between the CPU and the heatsink to improve heat dissipation. Make sure that the
CPU and the heatsink are securely fastened and in good contact with each other.
Installing the CPU Cooler (Type 1)
Please turn o the power or remove the power cord before changing a CPU or heatsink.
2
1

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4
3
CPU_FAN1

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B650M-HDV/M.2
Installing the CPU Cooler (Type 2)
2
1

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3
4
CPU_FAN1