Prime A520M-E
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Motherboard
PRIME A520M-E
ii
E16799
First Edition
June 2020
Copyright © 2020 ASUSTeK COMPUTER INC. All Rights Reserved.
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iii
Contents
Safety information ...................................................................................................... iv
About this guide .......................................................................................................... v
Package contents ....................................................................................................... vi
PRIME A520M-E specifications 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 configurations ..................................................................................... 2-5
Appendix
Notices ..................................................................................................................... A-1
ASUS contact information ...................................................................................... A-6
iv
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 qualied 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 qualied service
technician or your retailer.
• Your motherboard should only be used in environments with ambient temperatures
between 0°C and 40°C.
v
About this guide
This user guide contains the information you need when installing and conguring 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 find 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.
vi
PRIME A520M-E specifications summary
CPU
AMD Socket AM4 for 3
rd
Gen AMD Ryzen™ and 3
rd
Gen AMD Ryzen™
with Radeon™ Graphics Processors*
*Refer to www.asus.com for CPU support list.
Chipset AMD A520 Chipset
Memory
2 x DIMM, Max. 64GB, DDR4 4600(O.C.)/4400(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 (Qualified Vendors Lists).
Graphics
1 x D-Sub
1 x DVI-D
1 x HDMI
TM
2.1(4K@60HZ)
Expansion Slots
3
rd
Gen AMD Ryzen™ and 3
rd
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
Storage
Total supports 1 x M.2 slot and 4 x SATA 6Gb/s ports
3
rd
Gen AMD Ryzen™ and 3
rd
Gen AMD Ryzen™ with Radeon™
Graphics Processors
M.2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA
modes)
AMD A520 Chipset
4 x SATA 6Gb/s ports
Support RAID 0, 1, 10
Ethernet
1 x Realtek RTL8111H 1Gb Ethernet
USB
Rear USB (Total 7 ports)
1 x USB 3.2 Gen 2 port (1 x Type-A)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
(continued on the next page)
Package contents
Check your motherboard package for the following items.
Motherboard
1 x PRIME A520M-E motherboard
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x I/O Shield
1 x M.2 SSD screw package
Application DVD
1 x Support DVD
Documentation
1 x User manual
If any of the above items is damaged or missing, contact your retailer.
vii
PRIME A520M-E specifications summary
USB
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
Audio
Realtek ALC887 7.1 Surround Sound High Definition Audio CODEC*
- Supports Jack detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio 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.
Back Panel I/O Ports
1 x USB 3.2 Gen 2 port (1 x Type-A)
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 HDMI
TM
port
1 x Realtek RTL8111H 1Gb Ethernet port
3 x Audio jacks
1 x PS/2 Keyboard/Mouse combo port
Internal I/O
Connectors
Fan and cooling related
1 x 4-pin CPU Fan header
1 x 4-pin Chassis Fan header
Power related
1 x 24-pin Main Power connector
1 x 8-pin +12V Power connector
Storage related
1 x M.2 slot (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 Speaker header
1 x SPI TPM header (14-1pin)
1 x 10-1 pin System Panel header
(continued on the next page)
viii
PRIME A520M-E specifications summary
Special Features
ASUS 5X PROTECTION III
- ASUS DIGI+ VRM
- ASUS LANGuard
- ASUS Overvoltage Protection
- ASUS SafeSlot Core
- ASUS Stainless-Steel Back I/O
ASUS Q-Design
- ASUS Q-DIMM
- ASUS Q-Slot
ASUS Thermal Solution
- Aluminum heatsink design
ASUS Lighting Control
Software Features
ASUS Exclusive Software
Armoury Crate
AI Suite 3
- Performance and Power Saving Utility
TurboV EVO
EPU
DIGI+ VRM
Fan Xpert
- EZ update
ASUS CPU-Z
AI Charger
DAEMON Tools
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
BIOS
256 Mb Flash ROM, UEFI AMI BIOS
Manageability
WOL by PME, PXE
Operating System
Windows 10 - 64 bit
Form Factor
mATX Form Factor
8.9 inch x 8.7 inch (22.6 cm x 22.1 cm)
Specications are subject to change without notice. Refer to the ASUS website for the
latest specications.
ASUS PRIME A520M-E
1-1
Product Introduction
1
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.
Unplug the power cord before installing or removing the motherboard. Failure to do so can
cause you physical injury and damage motherboard components.
1.2 Motherboard overview
Place this
side towards
the rear of the
chassis
DDR4 DIMM_A1* (64bit, 288-pin module)
DDR4 DIMM_B1* (64bit, 288-pin module)
DIGI+
VRM
CPU_FAN
COM_DEBUG
CHA_FAN
TPM
F_PANEL
AAFP
SPDIF_OUT
SPEAKER
CLRTC
SATA6G_2SATA6G_1
SATA6G_3 SATA6G_4
256Mb
BIOS
EATX12V
EATXPWR
U32G1_12
AMD
A520
BATTERY
USB56
U32G2_1
LAN_U32G1_34
KBMS
_U32G1_56
DVI
VGA
HDMI
AUDIO
Super
I/O
PCIEX1_1
PCIEX1_2
M.2(SOCKET3)
2280 2260 2242
PCIEX16
USB34USB12
COM
22.1cm(8.7in)
22.6cm(8.9in)
SOCKET AM4
ALC
887
Realtek
8111H
8
5
13 1112 10
3
5 1 24 15 4
716914
6
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