ASUS Prime A520M-A Service Manual

PRIME A520M-A

Motherboard

E16797 First Edition

June 2020

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Contents

Safety information ...................................................................................................... iv

About this guide .......................................................................................................... v

Package contents ....................................................................................................... vi

PRIME A520M-A specications summary ............................................................... vi

Chapter 1 Product Introduction

1.1 Before you proceed ...................................................................................... 1-1

1.2 Motherboard overview ................................................................................. 1-1

1.3 Central Processing Unit (CPU) .................................................................... 1-7

1.4 System memory ............................................................................................ 1-8

Chapter 2 BIOS and RAID Support

2.1 Knowing BIOS ............................................................................................... 2-1

2.2 BIOS setup program ..................................................................................... 2-2

2.3 ASUS EZ Flash 3 ........................................................................................... 2-3

2.4 ASUS CrashFree BIOS 3 .............................................................................. 2-4

2.5 RAID congurations ..................................................................................... 2-5

Appendix

Notices ..................................................................................................................... A-1

ASUS contact information ...................................................................................... A-6

iii

Safety information

Electrical safety

• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system.

• When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.

• Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged.

• Seek professional assistance before using an adapter or extension cord. These devices could interrupt the grounding circuit.

• Ensure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company.

• If the power supply is broken, do not try to x it by yourself. Contact a qualied service technician or your retailer.

Operation safety

• Before installing the motherboard and adding components, carefully read all the manuals that came with the package.

• Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.

• To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.

• Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may be exposed to moisture.

• Place the product on a stable surface.

• If you encounter technical problems with the product, contact a qualied service technician or your retailer.

• Your motherboard should only be used in environments with ambient temperatures between 0°C and 40°C.

About this guide

This user guide contains the information you need when installing and conguring the

motherboard.

How this guide is organized

This guide contains the following parts:

• Chapter 1: Product Introduction

This chapter describes the features of the motherboard and the new technology it supports. It includes descriptions of the switches, jumpers, and connectors on the motherboard.

• Chapter 2: BIOS and RAID Support

This chapter tells how to boot into the BIOS, upgrade BIOS using the EZ Flash Utility and support on RAID.

Where to nd more information

Refer to the following sources for additional information and for product and software updates.

1. ASUS website

The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information.

2. Optional documentation

Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.

Conventions used in this guide

To ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

CAUTION: Information to prevent damage to the components and injuries to yourself when trying to complete a task.

IMPORTANT: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to help you complete a task.

Package contents

Check your motherboard package for the following items.

Motherboard

Cables

Miscellaneous

Application DVD

Documentation

If any of the above items is damaged or missing, contact your retailer.

1 x PRIME A520M-A motherboard

2 x SATA 6Gb/s cables

1 x I/O Shield 1 x M.2 SSD screw package

1 x Support DVD

1 x User manual

PRIME A520M-A specications summary

AMD Socket AM4 for 3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with

CPU

Chipset AMD A520 Chipset

Memory

Graphics

Expansion Slots

Storage

Ethernet 1 x Realtek RTL8111H 1Gb Ethernet

USB

Radeon™ Graphics Processors*

*Refer to www.asus.com for CPU support list.

4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C.)/4466(O.C.)/4400(

O.C.)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600

(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz, Un-buffered Memory*

Dual Channel Memory Architecture

*ECC Memory (ECC mode) support varies by CPU.

**Refer to www.asus.com for the Memory QVL (Qualied Vendors Lists).

1 x D-Sub

1 x DVI-D

1 x HDMI

2.1 (4k@60Hz)

3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors

1 x PCIe 3.0 x16 slot (supports x16 mode)

AMD A520 Chipset

2 x PCIe 3.0 x1 slots

Total supports 1 x M.2 slot and 4 x SATA 6Gb/s ports

3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™

Graphics Processors

M.2 slot (Key M), type 2242/2260/2280/22110

(supports PCIe 3.0 x4 & SATA modes)

AMD A520 Chipset

4 x SATA 6Gb/s ports

Support Raid 0, 1, 10

Rear USB (Total 6 ports)

4 x USB 3.2 Gen 1 ports (4 x Type-A)

2 x USB 2.0 ports (2 x Type-A)

Front USB (Total 6 ports)

1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports

2 x USB 2.0 headers support additional 4 USB 2.0 ports

(continued on the next page)

PRIME A520M-A specications summary

Realtek ALC 887 7.1 Surround Sound High Denition Audio CODEC*

- Supports Jack detection, Multi-streaming, Front Panel Jack-retasking

- Supports up to 24-Bit/192 kHz playback

Audio Features

Audio

Back Panel I/O Ports

Internal I/O Connectors

Special Features

- Audio Shielding

- LED-illuminated audio trace path design

- Premium Japanese audio capacitors

- Dedicated audio PCB layers

* A chassis with an HD audio module in the front panel is required to support 7.1

Surround Sound audio output.

4 x USB 3.2 Gen 1 ports (4 x Type-A)

2 x USB 2.0 ports (2 x Type-A)

1 x D-Sub port

1 x DVI-D port

1 x HDMITM port

1 x Realtek 8111H 1Gb Ethernet port

3 x Audio jacks

1 x PS/2 Keyboard/Mouse combo port

Fan and cooling related

1 x 4-pin CPU Fan header

2 x 4-pin Chassis Fan headers

Power related

1 x 24-pin Main Power connector

1 x 8-pin +12V Power connector

Storage related

1 x M.2 slots (Key M)

4 x SATA 6Gb/s ports

USB

1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports

2 x USB 2.0 headers support additional 4 USB 2.0 ports

Miscellaneous

1 x Clear CMOS header

1 x COM Port header

1 x Front Panel Audio header (AAFP)

1 x S/PDIF out header

1 x SPI TPM header (14-1pin)

1 x 20-5 pin System Panel header

ASUS 5X PROTECTION III

- ASUS DIGI+ VRM

- ASUS LANGuard

- ASUS Overvoltage Protection

- ASUS SafeSlot Core

- ASUS Stainless-Steel Back I/O

(continued on the next page)

vii

PRIME A520M-A specications summary

ASUS Q-Design

- ASUS Q-DIMM

Special Features

Software Features

BIOS 256 Mb Flash ROM, UEFI AMI BIOS

Manageability WOL by PME, PXE

Operating System

Form Factor

- ASUS Q-Slot

ASUS Thermal Solution

- Aluminum heatsink design

ASUS Exclusive Software

Armoury Crate

AI Suite 3

- Performance and Power Saving Utility TurboV EVO EPU Digi+ VRM Fan Xpert 2+ PC Cleaner

- Lighting Control

- EZ update

- System Information

ASUS CPU-Z

AI Charger

Norton Anti-virus software (Free Trial for 60 days)

WinRAR

UEFI BIOS

ASUS EZ DIY

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 3

- ASUS UEFI BIOS EZ Mode

Windows 10 - 64 bit

mATX Form Factor

9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )

viii

Specications are subject to change without notice. Refer to the ASUS website for the

latest specications.

Product Introduction

1.1 Before you proceed

Take note of the following precautions before you install motherboard components or change any motherboard settings.

• Unplug the power cord from the wall socket before touching any component.

• Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity.

• Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. Failure to do so may cause severe damage to the motherboard, peripherals, or components.

1.2 Motherboard overview

Place this

side towards

the rear of the

chassis

KBMS _U32G1_56

DVI

VGA

HDMI

USB56

LAN_U32G1_34

AUDIO

Realtek

8111H

Super

I/O

ALC 887

10 1112 13

5 1 24 14 4

EATX12V

BATTERY

CHA_FAN1

22110

2280 2260 2242

PCIEX1_1

PCIEX1_2

COM

AAFP

256Mb BIOS

SPI_TPM

CLRTC

SPDIF_OUT

PCIEX16

COM_DEBUG

24.4cm(9.6in)

USB34USB12

DIGI+ VRM

CHA_FAN2

CPU_FAN

EATXPWR

DDR4 DIMM_A2* (64bit, 288-pin module)

DDR4 DIMM_B1 (64bit, 288-pin module)

DDR4 DIMM_B2* (64bit, 288-pin module)

U32G1_12

SATA6G_3 SATA6G_2 SATA6G_1

M.2(SOCKET3)

PANEL

SOCKET AM4

DDR4 DIMM_A1 (64bit, 288-pin module)

AMD A520

SATA6G_4

7159

Unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage motherboard components.

24.4cm(9.6in)

ASUS PRIME A520M-A

1-1

+ 21 hidden pages