ASROCK A520M-HDV User manual

Version 1.0
Published July 2020
Copyright©2020 ASRock 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 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. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock 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, 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 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 Website: http://www.asrock.com

AUSTRALIA ONLY
Our goods come with guarantees that cannot be excluded under the Australian
Consumer Law. You are entitled to a replacement or refund for a major failure and
compensation for any other reasonably foreseeable loss or damage caused by our
goods. You are also entitled to have the goods repaired or replaced if the goods fail
to be of acceptable quality and the failure does not amount to a major failure. If
you require assistance please call ASRock Tel : [phone] ext.123 (Standard
International call charges apply)
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 Motherboard Layout 6
1.4 I/O Panel 9
Chapter 2 Installation 11
2.1 Installing the CPU 12
2.2 Installing the CPU Fan and Heatsink 14
2.3 Installing Memory Modules (DIMM) 22
2.4 Expansion Slots (PCI Express Slots) 24
2.5 Jumpers Setup 25
2.6 Onboard Headers and Connectors 26
2.7 M.2_SSD (NGFF) Module Installation Guide 30
Chapter 3 Software and Utilities Operation 34
3.1 Installing Drivers 34
3.2 ASRock Motherboard Utility (A-Tuning) 35
3.2.1 Installing ASRock Motherboard Utility (A-Tuning) 35
3.2.2 Using ASRock Motherboard Utility (A-Tuning) 35
3.3 ASRock Live Update & APP Shop 38
3.3.1 UI Overview 38
3.3.2 Apps 39

3.3.3 BIOS & Drivers 42
3.3.4 Setting 43
Chapter 4 UEFI SETUP UTILITY 44
4.1 Introduction 44
4.1.1 UEFI Menu Bar 44
4.1.2 Navigation Keys 45
4.2 Main Screen 46
4.3 OC Tweaker Screen 47
4.4 Advanced Screen 50
4.4.1 CPU Conguration 51
4.4.2 Onboard Devices Conguration 52
4.4.3 Storage Conguration 54
4.4.4 ACPI Conguration 55
4.4.5 Super IO Conguration 56
4.4.6 Trusted Computing 57
4.4.7 AMD PBS 58
4.4.8 AMD Overclocking 59
4.4.9 AMD CBS 60
4.5 Tools 61
4.6 Hardware Health Event Monitoring Screen 62
4.7 Security Screen 64
4.8 Boot Screen 65
4.9 Exit Screen 68

English
1
A520M-HDV
A520M-HVS
Chapter 1 Introduction
ank you for purchasing ASRock A520M-HDV / A520M-HVS 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.
In this documentation, Chapter 1 and 2 contains the introduction of the
motherboard and step-by-step installation guides. Chapter 3 contains the operation
guide of the soware and utilities. Chapter 4 contains the conguration guide of
the BIOS setup.
1.1 Package Contents
• ASRock A520M-HDV / A520M-HVS Motherboard (Micro ATX Form Factor)
• ASRock A520M-HDV / A520M-HVS Quick Installation Guide
• ASRock A520M-HDV / A520M-HVS Support CD
• 1 x I/O Panel Shield
• 2 x Serial ATA (SATA) Data Cables (Optional)
• 1 x Screw for M.2 Socket (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 mother-
board, 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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2
1.2 Specications
Platform • Micro ATX Form Factor
• Solid Capacitor design
CPU • Supports 3rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™
Processors (3000 and 4000 Series Processors)*
* Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3
3200G.
• 6 Power Phase design
Chipset • AMD A520
Memory • Dual Channel DDR4 Memory Technology
• 2 x DDR4 DIMM Slots
• AMD Ryzen series CPUs (Matisse) support DDR4
4600+(OC)/4533(OC)/4466(OC)/4400(OC)/4333
(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000
(OC)/3866(OC)/3800(OC)/3733(OC)/3600(OC)/3466|
(OC)/3200/2933/2667/2400/2133 ECC & non-ECC, un-
buered memory*
• AMD Ryzen series APUs (Renoir) support DDR4 4733+
(OC)/4666(OC)/4600(OC)/4533(OC)/4466(OC)/4400(OC)/
4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866
(OC)/3800(OC)/3733(OC)/3600(OC)/3466(OC)/3200/2933/
2667/2400/2133 ECC & non-ECC, un-buered memory*
* Please refer to Memory Support List on ASRock’s website for
more information. (http://www.asrock.com/)
* Please refer to page 21 for DDR4 UDIMM maximum
frequency support.
• Max. capacity of system memory: 64GB
• Supports Extreme Memory Prole (XMP) memory modules
• 15μ Gold Contact in DIMM Slots
Expansion
Slot
• 1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*
* Supports NVMe SSD as boot disks
• 1 x PCI Express 3.0 x1 Slot

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A520M-HDV
A520M-HVS
Graphics • Integrated AMD RadeonTM Vega Series Graphics in Ryzen
Series APU*
* Actual support may vary by CPU
• DirectX 12, Pixel Shader 5.0
• Shared memory default 2GB. Max Shared memory supports
up to 16GB.
* e Max shared memory 16GB requires 32GB system
memory installed.
A520M-HDV:
• ree graphics output options: D-Sub, DVI-D and HDMI
• Supports Triple Monitor
• Supports HDMI 2.1 with max. resolution up to 4K x 2K
(4096x2160) @ 60Hz
• Supports DVI-D with max. resolution up to 1920x1200 @
60Hz
• Supports D-Sub with max. resolution up to 1920x1200 @
60Hz
• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and
HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant
HDMI monitor is required)
• Supports HDR (High Dynamic Range) with HDMI 2.1
• Supports HDCP 2.3 with DVI-D and HDMI 2.1 Ports
• Supports 4K Ultra HD (UHD) playback with HDMI 2.1
Port
• Supports Microso PlayReady®
A520M-HVS:
• Dual graphics output: support D-Sub and HDMI ports by
independent display controllers
• Supports HDMI 2.1 with max. resolution up to 4K x 2K
(4096x2160) @ 60Hz
• Supports D-Sub with max. resolution up to 1920x1200 @
60Hz
• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and
HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant
HDMI monitor is required)
• Supports HDR (High Dynamic Range) with HDMI 2.1
• Supports HDCP 2.3 with HDMI 2.1 Port
• Supports 4K Ultra HD (UHD) playback with HDMI 2.1
Port
• Supports Microso PlayReady®

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Audio • 7.1 CH HD Audio (Realtek ALC887 Audio Codec)
• Supports Surge Protection
LAN • PCIE x1 Gigabit LAN 10/100/1000 Mb/s
• Realtek RTL8111H
• Supports Wake-On-LAN
• Supports Lightning/ESD Protection
• Supports Energy Ecient Ethernet 802.3az
• Supports PXE
Rear Panel
I/O
• 1 x PS/2 Mouse/Keyboard Port
• 2 x USB 2.0 Ports (Supports ESD Protection)
• 4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
• 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED
LED)
• HD Audio Jacks: Line in / Front Speaker / Microphone
A520M-HDV:
• 1 x D-Sub Port
• 1 x DVI-D Port
• 1 x HDMI Port
A520M-HVS:
• 1 x D-Sub Port
• 1 x HDMI Port
Storage • 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,
RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
• 1 x Ultra M.2 Socket, supports M Key type 2242/2260/2280
M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module
up to Gen3 x4 (32 Gb/s)*
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit
Connector • 1 x SPI TPM Header
• 1 x COM Port Header
• 1 x Chassis Intrusion and Speaker Header
• 1 x CPU Fan Connector (4-pin)
* e CPU Fan Connector supports the CPU fan of maximum
1A (12W) fan power.
• 2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed
Control)

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A520M-HDV
A520M-HVS
* e Chassis Fan supports the water cooler fan of maximum
1A (12W) fan power.
* CHA_FAN2 can auto detect if 3-pin or 4-pin fan is in use.
• 1 x 24 pin ATX Power Connector
• 1 x 4 pin 12V Power Connector
• 1 x Front Panel Audio Connector
• 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports
ESD Protection)
• 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)
(Supports ESD Protection)
BIOS
Feature
• AMI UEFI Legal BIOS with GUI support
• Supports “Plug and Play”
• ACPI 5.1 compliance wake up events
• Supports jumperfree
• SMBIOS 2.3 support
• CPU, CPU VDDCR_SOC, DRAM, VDDP Voltage Multi-
adjustment
Hardware
Monitor
• Temperature Sensing: CPU, Chassis Fans
• Fan Tachometer: CPU, Chassis Fans
• Quiet Fan (Auto adjust chassis fan speed by CPU
temperature): CPU, Chassis Fans
• Fan Multi-Speed Control: CPU, Chassis Fans
• CASE OPEN detection
• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore
OS • Microso® Windows® 10 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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AMD
Promontory
A520
A520M-HDV
BIOS
ROM
ATXPWR1
FSB800
DDR4_A1 (64 bit, 288-pin module)
DDR4_A2 (64 bit, 288-pin module)
Super
I/O
LAN
AUDIO
CODEC
PCIE2
PCIE1
HD_AUDIO1
1
CPU_FAN1
1
COM1
3
4
2
6
5
USB 2.0
T: USB1
B: USB2
PS2
Keyboard/
Mouse
CMOS
Battery
1
USB3_5_6
1
CHA_FAN2
HDLED RESET
PLED PWRBTN
PANEL1
1
15
10
9813
17
SPK_CI1
1
USB 3.2 Gen1
T: USB1
B: USB2
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
RJ-45 LAN
USB 3.2 Gen1
T: USB3
B: USB4
ATX12V
SOCKETAM4
CHA_FAN1
7
14
M2_1
USB_5_6
1
USB_3_4
1
12 11
RoHS
1
SPI_TPM_J1
16
HDMI1
CLRCMOS1
1
Ultra M.2
PCIe Gen3 x4
SATA3_3
SATA3_4
SATA3_1
SATA3_2
1.3 Motherboard Layout
A520M-HDV:

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A520M-HDV
A520M-HVS
AMD
Promontory
A520
A520M-HVS
BIOS
ROM
ATXPWR1
FSB800
DDR4_A1 (64 bit, 288-pin module)
DDR4_A2 (64 bit, 288-pin module)
Super
I/O
LAN
AUDIO
CODEC
PCIE2
PCIE1
HD_AUDIO1
1
CPU_FAN1
1
COM1
3
4
2
5
USB 2.0
T: USB1
B: USB2
PS2
Keyboard/
Mouse
CMOS
Battery
1
USB3_5_6
1
CHA_FAN2
HDLED RESET
PLED PWRBTN
PANEL1
1
SPK_CI1
1
USB 3.2 Gen1
T: USB1
B: USB2
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
RJ-45 LAN
USB 3.2 Gen1
T: USB3
B: USB4
ATX12V
SOCKETAM4
CHA_FAN1
M2_1
USB_5_6
1
USB_3_4
1
RoHS
1
SPI_TPM_J1
HDMI1
CLRCMOS1
1
Ultra M.2
PCIe Gen3 x4
15
10
981314 12 11
17
16
6
7
SATA3_3
SATA3_4
SATA3_1
SATA3_2
A520M-HVS:

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No. Description
1 ATX 12V Power Connector (ATX12V1)
2 CPU Fan Connector (CPU_FAN1)
3 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
4 ATX Power Connector (ATXPWR1)
5 USB 3.2 Gen1 Header (USB3_5_6)
6SATA3 Connector (SATA3_3) (Upper), SATA3 Connector (SATA3_4) (Lower)
7SATA3 Connector (SATA3_4) (Upper), SATA3 Connector (SATA3_2) (Lower)
8 System Panel Header (PANEL1)
9 Chassis Intrusion and Speaker Header (SPK_CI1)
10 Chassis Fan Connector (CHA_FAN2)
11 USB 2.0 Header (USB_3_4)
12 USB 2.0 Header (USB_5_6)
13 COM Port Header (COM1)
14 Clear CMOS Jumper (CLRCMOS1)
15 Front Panel Audio Header (HD_AUDIO1)
16 SPI TPM Header (SPI_TPM_J1)
17 Chassis Fan Connector (CHA_FAN1)

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A520M-HDV
A520M-HVS
1.4 I/O Panel
No. Description No. Description
1 USB 2.0 Ports (USB_12) 7 USB 3.2 Gen1 Ports (USB3_34)
2 D-Sub Port 8 USB 3.2 Gen1 Ports (USB3_12)
3 LAN RJ-45 Port* 9 DVI-D Port
4 Line In (Light Blue)** 10 HDMI Port
5 Front Speaker (Lime)** 11 PS/2 Mouse/Keyboard Port
6 Microphone (Pink)**
No. Description No. Description
1 USB 2.0 Ports (USB_12) 6 Microphone (Pink)**
2 D-Sub Port 7 USB 3.2 Gen1 Ports (USB3_34)
3 LAN RJ-45 Port* 8 USB 3.2 Gen1 Ports (USB3_12)
4 Line In (Light Blue)** 9 HDMI Port
5 Front Speaker (Lime)** 10 PS/2 Mouse/Keyboard Port
9 6710
5
4
13
8
2
A520M-HDV:
A520M-HVS:
10 6711 9
5
4
13
8
2

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* 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 connection
On Link Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port
** 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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A520M-HDV
A520M-HVS
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.
Failure to do so may cause physical injuries to you 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
Unplug all power cables before installing the CPU.
2
1

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13
A520M-HDV
A520M-HVS
3

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14
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 Box Cooler SR1
Please turn o the power or remove the power cord before changing a CPU or heatsink.
1
2

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A520M-HDV
A520M-HVS
3
4
CPU_FAN1