ASRock A320M-DVS R4.0 Service Manual

Version 1.0

Published September 2018

Copyright©2018 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 batter y 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 7

1.4 I/O Panel 10

Chapter 2 Installation 13

2.1 Installing the CPU 14

2.2 Installing the CPU Fan and Heatsink 16

2.3 Installing Memory Modules (DIMM) 24

2.4 Expansion Slots (PCI Express Slots) 27

2.5 Jumpers Setup 28

2.6 Onboard Headers and Connectors 29

2.7 M.2_SSD (NGFF) Module Installation Guide (for X370M-HDV
R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 only) 33

Chapter 3 Software and Utilities Operation 37

3.1 Installing Drivers 37

3.2 A-Tuning 38

3.2.1 Installing A-Tuning 38

3.2.2 Using A-Tuning 38

3.3 ASRock Live Update & APP Shop 41

3.3.1 UI Overview 41

3.3.2 Apps 42

3.3.3 BIOS & Drivers 45

3.3.4 Setting 46

Chapter 4 UEFI SETUP UTILITY 47

4.1 Introduction 47

4.1.1 UEFI Menu Bar 47

4.1.2 Navigation Keys 48

4.2 Main Screen 49

4.3 OC Tweaker Screen 50

4.4 Advanced Screen 52

4.4.1 CPU Conguration 53

4.4.2 North Bridge Conguration 54

4.4.3 South Bridge Conguration 55

4.4.4 Storage Conguration 56

4.4.5 Super IO Conguration 57

4.4.6 ACPI Conguration 58

4.4.7 Trusted Computing 59

4.4.8 AMD CBS 60

4.4.9 AMD PBS 68

4.5 Tools 69

4.6 Hardware Health Event Monitoring Screen 71

4.7 Security Screen 72

4.8 Boot Screen 73

4.9 Exit Screen 75

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

Chapter 1 Introduction

ank you for purchasing ASRock X370M-HDV R4.0 / AB350M-HDV R4.0 /

A320M-HDV R4.0 / A320M-DVS R4.0 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 manual, 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.

Becau se the motherboard specication s and the BIOS soware might be upd ated, the
content of this manual will be subjec t to change without notice. In case any modica­tions of this manu al 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 mod el you are using. You
may nd the l atest VGA cards and CPU suppor t list on ASRock’s website as well.
ASRock website http://www.asrock.com.

1.1 Package Contents

ASRock X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS

•

R4.0 Motherboard (Micro ATX Form Factor)

ASRock X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS

•

R4.0 Quick Installation Guide

ASRock X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS

•

R4.0 Support CD

1 x I/O Panel Shield

•

2 x Serial ATA (SATA) Data Cables (Optional)

•

1 x Screw for M.2 Socket (Optional) (for X370M-HDV R4.0 / AB350M-HDV R4.0 /

•

A320M-HDV R4.0 only)

English

1

English

1.2 Specications

Platform

CPU

Chipset

Memory

•

•

•

•

•

•

•

•

•

•

•

•

•

•

* For Ryzen Series CPUs (Raven R idge), ECC is only supported

with PRO CPUs.

* Please refer to Memory Support List on ASRock’s website for

more information. (http://www.asrock.com/)

* Please refer to page 24 for DDR4 UDIMM maximum

frequency support.

•

•

Micro ATX Form Factor

Solid Capacitor design

Supports AMD Socket AM4 A-Series APUs (Bristol Ridge)

and Ryzen Series CPUs (Summit Ridge, Raven Ridge and

Pinnacle Ridge)

6 Power Phase design

Supports CPU up to 105W

AMD Promontory X370 (X370M-HDV R4.0)

AMD Promontory B350 (AB350M-HDV R4.0)

AMD Promontory A320 (A320M-HDV R4.0 / A320M-DVS

R4.0)

Dual Channel DDR4 Memory Technology

2 x DDR4 DIMM Slots

AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4

3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-

buered memory*

AMD Ryzen series CPUs (Summit Ridge) support DDR4

3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-

buered memory*

AMD Ryzen series CPUs (Raven Ridge) support DDR4

3200+(OC)/2933/2667/2400/2133 non-ECC, un-buered

memory*

AMD 7th Gen A-Series APUs support DDR4 2400/2133 non-

ECC, un-buered memory*

Max. capacity of system memor y: 32GB

15μ Gold Contact in DIMM Slots

2

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

Expansion
Slot

Graphics

AMD Ryzen series CPUs (Summit Ridge and Pinnacle Ridge)

1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*

•

AMD 7th A-Series APUs

1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode)*

•

AMD Ryzen series CPUs (Raven Ridge)

1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode) (If you use

•

Athlon 2xxGE series APU, PCIE2 slot will run at x4 mode.)*

* Supports NVMe SSD as boot disks

1 x PCI Express 2.0 x1 Slot

•

Integrated AMD RadeonTM Vega Series Graphics in Ryzen

•

Series APU*

Integrated AMD RadeonTM R-Series Graphics in A-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 16 GB requires 32 GB system memory

installed.

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0

only:

ree graphics output options: D-Sub, DVI-D and HDMI

•

Supports Triple Monitor

•

Supports HDMI with max. resolution up to 4K x 2K

•

(4096x2160) @ 24Hz / (3840x2160) @ 30Hz

Supports DVI-D with max. resolution up to 1920x1200 @

•

60Hz

Supports D-Sub with max. resolution up to 2048x1536 @

•

60Hz

Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and

•

HBR (High Bit Rate Audio) with HDMI Port (Compliant

HDMI monitor is required)

Supports HDCP with DVI-D and HDMI Ports

•

Supports Full HD 1080p Blu-ray (BD) playback with DVI-D

•

and HDMI Ports

A32 0M-DVS R4.0:

Dual graphics output options: support DVI-D and D-Sub by

•

independent display controllers

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3

English

Audio

LAN

Rear Panel
I/O

Supports DVI-D with max. resolution up to 1920x1200 @

•

60Hz

Supports D-Sub with max. resolution up to 2048x1536 @

•

60Hz

Supports HDCP with DVI-D Port

•

Supports Full HD 1080p Blu-ray (BD) playback with DVI-D

•

Port

7.1 CH HD Audio (Realtek ALC887 Audio Codec)

•

* To congure 7.1 CH HD Audio, it is required to use an HD

front panel audio module and enable the multi-channel audio

feature through the audio driver.

Supports Surge Protection

•

ELNA Audio Caps

•

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

•

1 x PS/2 Mouse/Keyboard Port

•

2 x USB 2.0 Ports (Supports ESD Protection)

•

4 x USB 3.1 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

•

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0

only:

1 x D-Sub Port

•

1 x DVI-D Port

•

1 x HDMI Port

•

A32 0M-DVS R4.0:

1 x D-Sub Port

•

1 x DVI-D Port

•

4

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,

Storage

Connector

•

RAID 1 and RAID 10), NCQ, AHCI and Hot Plug

1 x Ultra M.2 Socket, supports M Key ty pe 2242/2260/2280

•

M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module

up to Gen3 x4 (32 Gb/s) (with Summit Ridge, Raven Ridge

and Pinnacle Ridge) or Gen3 x2 (16 Gb/s)(with A-Series APU

and Athlon 2xxGE series APU)* (for X370M-HDV R4.0 /

AB350M-HDV R4.0 / A320M-HDV R4.0 only)

* Supports NVMe SSD as boot disks

* Supports ASRock U.2 Kit

1 x COM Port Header

•

1 x TPM Header

•

1 x Chassis Intrusion and Speaker Header

•

1 x CPU Fan Connector (4-pin)

•

2 x Chassis Fan Connectors (1 x 4-pin, 1 x 3-pin)

•

* e CPU Fan Connector supports the CPU fan of maximum

1A (12W) fan power.

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 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports)

•

(Supports ESD Protection)

BIOS
Feature

Hardware
Monitor

AMI UEFI Legal BIOS with GUI support

•

Supports “Plug and Play”

•

ACPI 5.1 compliance wake up events

•

Supports jumperfree

•

SMBIOS 2.3 support

•

DRAM Voltage multi-adjustment

•

CPU/Chassis temperature sensing

•

CPU/Chassis Fan Tachometer

•

CPU/Chassis Quiet Fan

•

CPU/Chassis Fan multi-speed control

•

CASE OPEN detection

•

Voltage monitoring: +12V, +5V, +3.3V, Vcore

•

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5

Microso® Windows® 10 64-bit

OS

Certica­tions

* For detailed product infor mation, please vis it our website: http://www.asrock .com

Please realize that there is a certain risk involved with overcl ocking, including adjust­ing the setting in the BIOS, applying Untied Overclocking Technology, or using third­party o verclocking tool s. Overclocking may aect your system’s stability, or even cause
damage to the components and devic es of your system. It should be done at your own
risk and expense. We are not re sponsible for possibl e damage caused b y overclocking.

•

FCC, CE

•

ErP/EuP ready (ErP/EuP ready power supply is required)

•

English

6

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

ATXPWR1

FS B8 00

DDR 4_A1 (6 4 bit, 28 8-pin m odule )

DDR 4_A2 (6 4 bit, 28 8-pin m odule )

Sup er

I/O

LAN

AUDIO

CODEC

PCIE2

PCIE1

USB_3_ 4

USB_5_ 6

HD_AUDIO1

1

CPU_FAN1

1

COM1

3

4

2

9

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

RoHS

1518

16

13 1214

19

SPK_CI1

1

USB 3.1 Gen1
T: USB1
B: USB2

Top:

LINE IN

Cent er:

FRONT

Bott om:

MIC IN

RJ- 45 LAN

USB 3.1 Gen1
T: USB3
B: USB4

TPMS1

1

HDMI1

ATX12V

7

8

6

CLRMOS1

1

SATA3_3

SATA3_4

AMD

Promontory

X370/B350/A320

SOCKETAM4

CHA_FAN1

11

10

SATA3_1

SATA3_2

17

M2_1

1.3 Motherboard Layout

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0:

English

7

BIOS

ROM

DDR 4_A1 (6 4 bit, 28 8-pin m odule )

DDR 4_A2 (6 4 bit, 28 8-pin m odule )

Sup er

I/O

LAN

AUDIO

CODEC

PCIE2

PCIE1

USB_3_ 4

USB_5_ 6

HD_AUDIO1

1

CPU_FAN1

1

COM1

3

4

2

9

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

RoHS

1518

16

13 1214

19

SPK_CI1

1

USB 3.1 Gen1
T: USB1
B: USB2

Top:

LINE IN

Cent er:

FRONT

Bott om:

MIC IN

TPMS1

1

ATX12V

7

8

6

CLRMOS1

1

SATA3_3

SATA3_4

AMD

Promontory

A320

SOCKETAM4

CHA_FAN1

11

10

SATA3_1

SATA3_2

17

A320M-DVS

RJ- 45 LAN

USB 3.1 Gen1
T: USB3
B: USB4

ATXPWR1

A320M-DVS R4.0:

English

8

FS B8 00

BIOS
ROM

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

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_A2)

4 ATX Power Connector (ATXPWR1)

5 USB 3.1 Gen1 Header (USB3_5_6)

6 USB 2.0 Header (USB_3_4)

7 USB 2.0 Header (USB_5_6)

8 SATA3 Connector (SATA3_3)

9 SATA3 C onnector (SATA 3_ 4)

10 SATA3 Connector (SATA3_1)

11 SATA3 Connector (SATA3_2)

12 System Panel Header (PANEL1)

13 Chassis Intrusion and Speaker Header (SPK_CI1)

14 COM Port Header (COM1)

15 TPM Header (TPMS1)

16 Chassis Fan Connector (CHA_FAN2)

17 Clear CMOS Jumper (CLRCMOS1)

18 Front Panel Audio Header (HD_AUDIO1)

19 Chassis Fan Connector (CHA_FAN1)

English

9

1.4 I/O Panel

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0:

1 2 4

No. Description No. Description

1 USB 2.0 Ports (USB12) 7 USB 3.1 Gen1 Ports (USB3_12)

2 LAN RJ-45 Port* 8 HDMI Port

3 Line In (Light Blue)** 9 D-Sub Port

4 Front Speaker (Lime)** 10 DVI-D Port

5 Microphone (Pink)** 11 PS/2 Mouse/Keyboard Port

6 USB 3.1 Gen1 Ports (USB3_34)

3

5678911 10

English

10

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

A320M-DVS R4.0:

3

1 2 4

567810 9

1 USB 2.0 Ports (USB12) 6 USB 3.1 Gen1 Ports (USB3_34)

2 LAN RJ-45 Port* 7 USB 3.1 Gen1 Ports (USB3_12)

3 Line In (Light Blue)** 8 D-Sub Port

4 Front Speaker (Lime)** 9 DVI-D Port

5 Microphone (Pink)** 10 PS/2 Mouse/Keyboard Port

* ere are two LEDs on each LAN port. Ple ase refer to the table below for the LAN port LED indications.

ACT/LINK LED

SPEED LED

LAN Por t

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

English

11

** To congure 7.1 CH HD Audio, it i s required to use an HD front panel audio module and enable the multi­channel audio feature through the audio driver.

Please set Speaker Conguration to “7.1 Speaker” in the Realtek HD Audio Man ager.

Function of the Audio Ports in 7.1-channel Conguration:

English

12

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

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

Chapter 2 Installation

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.

13

English

2.1 Installing the CPU

Unplug all power cables before installing the CPU.

1

English

14

2

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

3

15

English

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.

Please turn o the power or remove the power cord be fore changing a CPU or heatsink .

Installing the CPU Box Cooler SR1

1

English

16

2

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

3

4

4-pin FAN cable

1

N
FA

_

U

P

C

English

17

Installing the AM4 Box Cooler SR2

1

2

English

18

X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0

3

19

English

4

4-pin FAN cable

1

N

FA

_

U

P
C

English

20