ASUS Prime B450M-A II Service Manual

PRIME B450M-A II

Motherboard

E17196
First Edition

August 2020

Copyright © 2020 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK COMPUTER INC. (“ASUS”).

Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the

product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS

OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.

SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

Products and corporate names appearing in this manual 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.

ii

Contents

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

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

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

PRIME B450M-A II specifications summary ............................................................. vi

Connectors with shared bandwidth .......................................................................... x

Chapter 1 Product Introduction

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

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

1.3 Central Processing Unit (CPU) .................................................................... 1-8

1.4 System memory ............................................................................................ 1-9

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

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.

iv

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 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.

v

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 B450M-A II 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 B450M-A II specifications summary

AMD Socket AM4 for 3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD

CPU

Chipset AMD B450 Chipset

Memory

Graphics

Expansion Slots

Ryzen™ with Radeon™ Vega Graphics / Athlon™ with Radeon™ Vega

Graphics Processors*

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

4 x DIMM, Max. 128GB, 4400(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/

3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/

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

Dual Channel Memory Architecture

* ECC memory (ECC mode) support varies by CPU.
*The maximum memory frequency supported varies by processor.
*Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).

Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with
Radeon™ Vega Graphics / Athlon™ with Radeon™ Vega Graphics
Processors

1 x D-Sub

1 x DVI-D

1 x HDMITM 2.0b

*Graphics specifications may vary between CPU types.

3rd/2nd/1st Gen AMD Ryzen™ Processors

1 x PCIe 3.0 x16 slot (supports x16 mode)

2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics
Processors

1 x PCIe 3.0 x16 slot (supports x8 mode)

Athlon™ with Radeon™ Vega Graphics Processors

1 x PCIe 3.0 x16 slot (supports x4 mode)

AMD B450 Chipset

2 x PCIe 2.0 x1 slots

(continued on the next page)

vi

PRIME B450M-A II specifications summary

Total supports 1 x M.2 slot and 6 x SATA 6Gb/s ports*
3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD Ryzen™ with

Radeon™ Vega Graphics Processors

M.2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 &

SATA modes)

Athlon™ with Radeon™ Vega Graphics Processors

Storage

Ethernet

USB

Audio

Back Panel I/O Ports

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

3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD Ryzen™ with

Radeon™ Vega Graphics / Athlon™ with Radeon™ Vega Graphics
Processors

2 x SATA 6Gb/s ports with RAID 0, 1, 10 support

AMD B450 Chipset

4 x SATA 6Gb/s ports with RAID 0, 1, 10 support

* The M.2 slot shares bandwidth with the SATA6G_5/6 ports, and therefore the

SATA6G_5/6 ports cannot be used when an M.2 device is installed.

1 x Realtek RTL8111H 1Gb Ethernet

Rear USB (Total 6 ports)

2 x USB 3.2 Gen 2 ports (2 x Type-A)

4 x USB 3.2 Gen 1 ports (4 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

Realtek 7.1 Surround Sound High Denition Audio CODEC*

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

- Supports up to 24-Bit/192kHz 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.

2 x USB 3.2 Gen 2 ports (2 x Type-A)

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

1 x D-Sub port

1 x DVI-D port

1 x HDMITM port

1 x Realtek RTL8111H 1Gb Ethernet port

3 x Audio jacks

1 x BIOS FlashBack™ button

1 x PS/2 Keyboard/Mouse combo port

(continued on the next page)

vii

PRIME B450M-A II specifications summary

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 slot (Key M)

6 x SATA 6Gb/s ports

Internal I/O
Connectors

Special Features

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 AURA RGB header

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 (14-1 pin)

1 x 10-1 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

ASUS Q-Design

- ASUS Q-DIMM

- ASUS Q-Slot

ASUS Thermal Solution

- Aluminum heatsink design

ASUS EZ DIY

- BIOS FlashBack™ button

- BIOS FlashBack™ LED

AURA Sync

- AURA RGB header

ASUS Lighting Control

(continued on the next page)

viii

PRIME B450M-A II specifications summary

ASUS Exclusive Software

Armoury Crate

- AURA Creator

- AURA Sync

AI Suite 3

- Performance and Power Saving Utility

TurboV EVO
EPU

DIGI+ VRM
Fan Xpert 2+

PC Cleaner

Software Features

BIOS

Manageability

Operating System

Form Factor

- EZ update

- System Information

ASUS CPU-Z

AI Charger

ASUS EZ Installer

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

256 Mb Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Windows 10 64- bit

Windows 7 64- bit*

* To support Windows 7 64- bit, please install an AMD Ryzen™ 2nd Generation or

Ryzen™ 1st Generation Processor.

mATX Form Factor

9.6 inch x 9.5 inch (24.4 cm x 24 cm)

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

latest specications.

ix

Connectors with shared bandwidth

FLBK_LED1

BIOS_FLBK

DVI

HDMI

KBMS

_U32G1_78

U32G2_56

LAN_U32G1_34

AUDIO

Super

I/O

Realtek

Codec

8111H

VGA

RTL

EATX12V

SPDIF_OUT

AAFP

CHA_FAN1

PCIEX1_1

PCIEX1_2

BATTERY

256Mb

BIOS

TPM

228022110 2260 2242

PCIEX16

COM

COM_DEBUG

USB34 USB56

DIGI+
VRM

U32G1_12

CHA_FAN2

CPU_FAN

SOCKET AM4

M.2(SOCKET3)

SPEAKER

F_PANEL

A

RGB_HEADER

DDR4 DIMM_A1 (64bit, 288-pin module)

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

DDR4 DIMM_B1 (64bit, 288-pin module)

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

AMD

B450

CLRTC

SATA6G_1

SATA6G_2 SATA6G_3

SATA6G_4

EATXPWR

SATA6G_5 SATA6G_6

A

A

x

Configuration

M.2 PCIe 3.0 x4 / SATA mode -

A

SATA6G_5/6 - v

1 2

The M.2 slot shares bandwidth with the SATA6G_5/6 ports, and therefore the SATA6G_5/6
ports cannot be used when an M.2 device is installed.

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.

1.2 Motherboard overview

Place this

side towards

the rear of the

chassis

5 1 2104 16 4

FLBK_LED1

18

BIOS_FLBK

EATX12V

DVI

VGA

HDMI

KBMS

_U32G1_78

U32G2_56

LAN_U32G1_34

AUDIO

6

RTL
8111H

Super

I/O

3

Realtek
Codec

AAFP

SPDIF_OUT

CHA_FAN1

PCIEX1_1

PCIEX1_2

BATTERY

256Mb
BIOS

228022110 2260 2242

COM_DEBUG

COM

14 1213

TPM

PCIEX16

USB34 USB56

24cm(9.5in)

U32G1_12

M.2(SOCKET3)

SPEAKER

F_PANEL

CHA_FAN2

CPU_FAN

SOCKET AM4

RGB_HEADER

AMD

B450

SATA6G_1

DDR4 DIMM_A1 (64bit, 288-pin module)

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

DDR4 DIMM_B1 (64bit, 288-pin module)

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

CLRTC

SATA6G_2 SATA6G_3

SATA6G_4

DIGI+

VRM

7179 8

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

EATXPWR

SATA6G_5 SATA6G_6

5

24.4cm(9.6in)

7

15

11

ASUS PRIME B450M-A II

1-1

1.2.1 Layout contents

FAN PWM

1. CPU socket

The motherboard comes with an AMD Socket AM4 designed for 3rd/2nd/1st Gen AMD Ryzen™
/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics / Athlon™ with Radeon™
Vega Graphics Processors.

For more details, refer to Central Processing Unit (CPU).

2. DDR4 DIMM slots

The motherboard comes with Dual Inline Memory Modules (DIMM) slots designed for DDR4
(Double Data Rate 4) memory modules.

For more details, refer to System memory.

3. Expansion slots

This motherboard supports one PCIe 3.0 x16 graphics card and two PCIe 2.0 x1 network

cards, SCSI cards and other cards that comply with the PCI Express specication.

FAN PWM

FAN PWR

4. Fan headers

The Fan headers allow you to connect fans to cool the system.

GND
FAN PWR
FAN IN

5. Power connectors

These Power connectors allow you to connect your motherboard to a power supply. The

power supply plugs are designed to t in only one orientation. Find the proper orientation and
push down rmly until the power supply plugs are fully inserted.

Ensure to connect the 8-pin power plug.

GND

FAN IN

• For a fully congured system, we recommend that you use a power supply unit
(PSU) that complies with ATX 12V Specication 2.0 (or later version) and provides a

minimum power of 350W.

• We recommend that you use a PSU with a higher power output when conguring a

system with more power-consuming devices. The system may become unstable or
may not boot up if the power is inadequate.

• If you are uncertain about the minimum power supply requirement for your system, we
recommend you to refer to online resources for Power Supply Wattage Calculator.

6. M.2 Slot (Key M)

The M.2 slot allows you to install an M.2 device such as an M.2 SSD module.

• For 3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega
Graphics Processors, M.2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe

3.0 x4 & SATA modes).

• For Athlon™ with Radeon™ Vega Graphics Processors, M.2 slot (Key M), type
2242/2260/2280/22110 (supports SATA mode).

• The M.2 Socket shares bandwidth with the SATA_5/6 ports, and therefore the
SATA_5/6 ports cannot be used when an M.2 device is installed.

1-2

Chapter 1: Product Introduction

7. SATA 6Gb/s ports

PIN 1

USB_P1-

USB_P1+

USB_P2+

The SATA 6Gb/s ports allow you to connect SATA devices such as optical disc drives and
hard disk drives via a SATA cable.

8. USB 3.2 Gen 1 header

The USB 3.2 Gen 1 header allows you to connect a USB 3.2 Gen 1
module for additional USB 3.2 Gen 1 ports. The USB 3.2 Gen 1 header
provides data transfer speeds of up to 5 Gb/s.

USB3+5V
IntA_P2_SSRX­IntA_P2_SSRX+

IntA_P2_SSTX­IntA_P2_SSTX+

IntA_P2_D-

IntA_P2_D+

GND

GND

The USB 3.2 Gen 1 module is purchased separately.

9. USB 2.0 headers

The USB 2.0 headers allow you to connect USB modules for additional USB

2.0 ports. The USB 2.0 headers provide data transfer speeds of up to 480 Mb/s.

DO NOT connect a 1394 cable to the USB connectors. Doing so will
damage the motherboard!

The USB 2.0 module is purchased separately.

PIN 1

10. AURA RGB header

The RGB header allows you to connect a RGB LED strip.

The RGB header supports 5050 RGB multi-color LED strips (12V/G/R/B), with a maximum
power rating of 3A (12V), and no longer than 3 m.

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.

• Actual lighting and color will vary with LED strip.

• If your LED strip does not light up, check if the RGB LED extension cable and the
RGB LED strip are connected in the correct orientation, and the 12V connector is
aligned with the 12V header on the motherboard.

• The LED strip will only light up when the system is powered on.

• The LED strip is purchased separately.

USB3+5V
IntA_P1_SSRX­IntA_P1_SSRX+
GND
IntA_P1_SSTX­IntA_P1_SSTX+
GND
IntA_P1_D­IntA_P1_D+
GND

USB+5V

USB+5V

USB_P2-

GND

GND

NC

11. Clear CMOS header

This header allows you to clear the CMOS RTC RAM data of the system setup
information such as date, time, and system passwords.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

PIN 1

2. Use a metal object such as a screwdriver to short the two pins.

3. Plug the power cord and turn ON the computer.

4. Hold down the <Del> key during the boot process and enter BIOS setup to re-

enter data.

If the steps above do not help, remove the onboard battery and short the two pins again to
clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.

ASUS PRIME B450M-A II

CLRTC

+3V_BAT

GND

1-3

12. COM Port header

GND

+5V

GND

GND

Speaker Out

SPEAKER

PIN 1

AAFP

AGNDNCSENSE1_RETUR

SENSE2_RETUR

PORT1 L

PORT1 R

PORT2 R

SENSE_SEND

PORT2 L

HD-audio-compliant

pin definition

TPM

PIN 1

T_SPI_MOSI

T_SPI_CLK

GND

F_BIOS_WP#_R

S_SPI_TPM_CS2#

S_SPI_TPM_IRQ#

F_SPI_HOLD#_R

T_SPI_MISO

F_SPI_CS0#_R

+3V_SPINCS_PLTRST#

VCCSPI

PIN 1

PWR_BTN

PWR_LED+

PWR_LED-

PWR

GND

HDD_LED+

HDD_LED-

Ground

HWRST#

(NC)

F_PANEL

+PWR_LED-

+HDD_LED- RESET

This header is for a serial (COM) port. Connect the serial port module cable to

COM

RXD

this header, then install the module to a slot opening at the back of the system
chassis.

PIN 1

DCD

13. Front Panel Audio header

This header is for a chassis-mounted front panel audio I/O module that
supports HD audio standard. Connect one end of the front panel audio I/O
module cable to this header.

• We recommend that you connect a high-denition front panel audio
module to this header to avail of the motherboard’s high-denition

audio capability.

• If you want to connect a high-denition front panel audio module to

this header, set the Front Panel Type item in the BIOS setup to [HD
Audio]. By default, this header is set to [HD Audio].

TXD

DTR

DSR

CTS

RTS

RI

1-4

14. S/PDIF Out header

This header is for an additional Sony/Philips Digital Interface (S/PDIF) port.
Connect the S/PDIF Out module cable to this header, then install the module to
a slot opening at the back of the system chassis.

15. Speaker header

The 4-pin header is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.

16. SPI TPM header

This header supports a Trusted Platform Module (TPM) system with a
Serial Peripheral Interface (SPI), allowing you to securely store keys, digital

certicates, passwords, and data. A TPM system also helps enhance network

security, protects digital identities, and ensures platform integrity.

17. 10-1 pin System Panel header

This header supports several chassis-mounted functions.

• System power LED (2-pin +PWR_LED-)

This 2-pin header is for the system power LED. Connect the chassis
power LED cable to this header. The system power LED lights up when
you turn on the system power, and blinks when the system is in sleep
mode.

Chapter 1: Product Introduction

SPDIF_OUT

+5V

SPDIFOUT

GND

• Hard disk drive activity LED (2-pin +HDD_LED-)

This 2-pin header is for the HDD Activity LED. Connect the HDD Activity LED cable to
this header. The HDD LED lights up or flashes when data is read from or written to the
HDD.

• Power button/Soft-off button (2-pin PWR_BTN)

This header is for the system power button.

• Reset button (2-pin RESET)

This 2-pin header is for the chassis-mounted reset button for system reboot without
turning off the system power.

18. BIOS FlashBackTM LED

The FlashBack™ LED lights up or blinks to indicate the status of the
BIOS FlashBack™.

Scan the QR code for more information on BIOS FlashBackTM
function.

ASUS PRIME B450M-A II

1-5

1.2.2 Rear panel connectors

1

2 3 4 5 6

7

8

9

10 10

11 12

1. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other

VGA-compatible devices.

2. PS/2 Keyboard/Mouse combo port. This port is for a PS/2 keyboard or mouse.

3. USB 3.2 Gen 2 (up to 10Gbps) ports (teal blue, Type A). These 9-pin Universal

Serial Bus 3.2 (USB 3.2) ports are for USB 3.2 Gen 2 devices.

4. Ethernet port. This port allows Gigabit connection to a Local Area Network (LAN)

through a network hub. Refer to the table below for the Ethernet port LED indications.

Ethernet port LED indications

Activity/Link LED Speed LED
Status Description Status Description

Off No link
Orange Linked
Orange (Blinking) Data activity
Orange (Blinking

then steady)

Ready to wake
up from S5 mode

Off
Orange
Green

10Mbps connection
100Mbps connection
1Gbps connection

Activity Link

LED

Ethernet port

Speed

LED

5. Line In port (light blue). This port connects the tape, CD, DVD player, or other audio

sources.

6. Line Out port (lime). This port connects a headphone or a speaker. In 4-channel,

5.1-channel, and 7.1-channel congurations, the function of this port becomes Front

Speaker Out.

7. BIOS FlashBackTM button. Press the BIOS FlashBackTM button for three seconds until

the FlashBackTM LED blinks three times, indicating that the BIOS FlashBackTM function
is enabled.

8. DVI-D port. This port is for any DVI-D compatible device.

DVI-D can not be converted to output from RGB Signal to CRT and is not compatible with
DVI-I.

9. HDMITM port. This port is for a High-Denition Multimedia Interface (HDMITM)

connector, and is HDCP compliant allowing playback of HD DVD, Blu-ray, and other
protected content.

1-6

Chapter 1: Product Introduction

10. USB 3.2 Gen 1 (up to 5Gbps) ports. These 9-pin Universal Serial Bus (USB) ports

connect to USB 3.2 Gen 1 devices.

11. USB 3.2 Gen 1 (up to 5Gbps) port with BIOS FlashBackTM function. Insert a USB

storage device to this USB 3.2 Gen 1 port to run BIOS FlashBackTM.

12. Microphone port (pink). This port connects a microphone.

Refer to the audio conguration table for the function of the audio ports in 2, 4, 5.1, or

7.1-channel conguration.

Audio 2, 4, 5.1 or 7.1-channel configuration

Port

Light Blue

(Rear panel)

Lime (Rear panel) Line Out Front Speaker Out Front Speaker Out Front Speaker Out

Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center

Lime (Front panel) — — — Side Speaker Out

To configure a 7.1-channel audio output:

Use a chassis with HD audio module in the front panel to support a 7.1-channel audio
output.

Headset

2-channel

Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out

4-channel 5.1-channel 7.1-channel

ASUS PRIME B450M-A II

1-7

1.3 Central Processing Unit (CPU)

The motherboard comes with an AMD Socket AM4 designed for
3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD Ryzen™ with
Radeon™ Vega Graphics / Athlon™ with Radeon™ Vega Graphics
Processors.

Unplug all power cables before installing the CPU.

The AM4 socket has a different pinout design. Ensure that you use a CPU designed for the

AM4 socket. The CPU ts in only one correct orientation. DO NOT force the CPU into the

socket to prevent bending the connectors on the socket and damaging the CPU!

Installing the CPU

1

3

2

4

1-8

Apply the Thermal Interface Material to the CPU heatsink and CPU before you install the
heatsink and fan if necessary.

Chapter 1: Product Introduction

1.4 System memory

DIMM_A2*

DIMM_B2*

This motherboard comes with four Double Data Rate 4 (DDR4) Dual Inline Memory Module

(DIMM) sockets. The gure illustrates the location of the DDR4 DIMM sockets:

DIMM_A1

DIMM_B1

Channel Sockets

Channel A DIMM_A1 & DIMM_A2*

Channel B DIMM_B1 & DIMM_B2*

• You may install varying memory sizes in Channel A and Channel B. The system

maps the total size of the lower-sized channel for the dual-channel conguration. Any

excess memory from the higher-sized channel is then mapped for single-channel
operation.

• Always install DIMMs with the same CAS latency. For optimal compatibility, we
recommend that you install memory modules of the same version or date code (D/C)
from the same vendor. Check with the retailer to get the correct memory modules.

• A DDR4 memory module is notched differently from a DDR, DDR2, or DDR3 module.
DO NOT install a DDR, DDR2, or DDR3 memory module to the DDR4 slot.

• The default memory operation frequency is dependent on its Serial Presence
Detect(SPD), which is the standard way of accessing information from a memory
module. Under the default state, some memory modules for overclocking may operate
at a lower frequency than the vendor-marked value.

• For system stability, use a more efcient memory cooling system to support a full

memory load (4 DIMMs).

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

Recommended memory configuration

DIMM_B2*

ASUS PRIME B450M-A II

DIMM_A2*

DIMM_B2*

DIMM_A1
DIMM_A2*
DIMM_B1
DIMM_B2*

1-9

Installing a DIMM

1 2

To remove a DIMM

A

B

A

A

B

1-10

Chapter 1: Product Introduction

BIOS and RAID Support

2

2.1 Knowing BIOS

The new ASUS UEFI BIOS is a Unied Extensible Interface that complies with UEFI
architecture, offering a user-friendly interface that goes beyond the traditional keyboard­only BIOS controls to enable a more flexible and convenient mouse input. You can easily
navigate the new UEFI BIOS with the same smoothness as your operating system. The
term “BIOS” in this user manual refers to “UEFI BIOS” unless otherwise specied.

BIOS (Basic Input and Output System) stores system hardware settings such as storage
device conguration, overclocking settings, advanced power management, and boot
device conguration that are needed for system startup in the motherboard CMOS. In
normal circumstances, the default BIOS settings apply to most conditions to ensure
optimal performance. DO NOT change the default BIOS settings except in the following
circumstances:

• An error message appears on the screen during the system bootup and requests you

to run the BIOS Setup.

• You have installed a new system component that requires further BIOS settings or

update.

Inappropriate BIOS settings may result to instability or boot failure. We strongly

recommend that you change the BIOS settings only with the help of a trained service
personnel.

• When downloading or updating the BIOS le, rename it as PB450MA2.CAP for this
motherboard.

• BIOS settings and options may vary due to different BIOS release versions. Please
refer to the latest BIOS version for settings and options.

ASUS PRIME B450M-A II

2-1

2.2 BIOS Setup program

Use the BIOS Setup to update the BIOS or congure its parameters. The BIOS screens
include navigation keys and brief onscreen help to guide you in using the BIOS Setup
program.

Entering BIOS at startup

To enter BIOS Setup at startup, press <Delete> or <F2> during the Power-On Self Test
(POST). If you do not press <Delete> or <F2>, POST continues with its routines.

Entering BIOS Setup after POST

To enter BIOS Setup after POST:

• Press <Ctrl>+<Alt>+<Delete> simultaneously.

• Press the reset button on the system chassis.

• Press the power button to turn the system off then back on. Do this option only if you
failed to enter BIOS Setup using the rst two options.

After doing either of the three options, press <Delete> key to enter BIOS.

• Ensure that a USB mouse is connected to your motherboard if you want to use the
mouse to control the BIOS setup program.

• If the system becomes unstable after changing any BIOS setting, load the default
settings to ensure system compatibility and stability. Select the Load Optimized
Defaults item under the Exit menu or press hotkey <F5>.

• If the system fails to boot after changing any BIOS setting, try to clear the CMOS and
reset the motherboard to the default value.

• The BIOS setup program does not support Bluetooth devices.

BIOS menu screen

The BIOS Setup program can be used under two modes: EZ Mode and Advanced Mode.
You can change modes from Setup Mode in Boot menu or by pressing the <F7> hotkey.

2-2

Chapter 2: BIOS and RAID Support

2.3 ASUS EZ Flash 3

The ASUS EZ Flash 3 feature allows you to update the BIOS without using an OS-based
utility.

Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Optimized Defaults item under the Exit menu or press hotkey <F5>.

To update the BIOS by USB:

• This function can support devices such as a USB flash disk with FAT 32/16 format and
single partition only.

• DO NOT shut down or reset the system while updating the BIOS to prevent system
boot failure!

1. Insert the USB flash disk that contains the latest BIOS le to the USB port.

2. Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select
ASUS EZ Flash 3 Utility and press <Enter>.

3. Press <Tab> to switch to the Drive eld.

4. Press the Up/Down arrow keys to nd the USB flash disk that contains the latest BIOS,
and then press <Enter>.

5. Press <Tab> to switch to the Folder eld.

6. Press the Up/Down arrow keys to nd the BIOS le, and then press <Enter> to perform
the BIOS update process. Reboot the system when the update process is done.

ASUS PRIME B450M-A II

2-3

2.4 ASUS CrashFree BIOS 3

The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the
BIOS le when it fails or gets corrupted during the updating process. You can restore a
corrupted BIOS le using a USB flash drive that contains the BIOS le.

If you want to use the latest BIOS le, download the le at https://www.asus.com/support,
and save it to a USB flash drive.

Recovering the BIOS

To recover the BIOS:

1. Turn on the system.

2. Insert the USB flash drive containing the BIOS le to the USB port.

3. The utility automatically checks the devices for the BIOS le. When found, the utility
reads the BIOS le and enters ASUS EZ Flash 3 automatically.

4. The system requires you to enter BIOS Setup to recover the BIOS setting. To ensure
system compatibility and stability, we recommend that you press <F5> to load default
BIOS values.

DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!

2-4

Chapter 2: BIOS and RAID Support

2.5 RAID configurations

The motherboard supports RAID 0, RAID 1, and RAID 10 conguration.

For more information on conguring your RAID sets, please
refer to the RAID Configuration Guide which you can nd at
https://www.asus.com/support, or by scanning the QR code.

RAID definitions

RAID 0 (Data striping) optimizes two identical hard disk drives to read and write data in

parallel, interleaved stacks. Two hard disks perform the same work as a single drive but at a
sustained data transfer rate, double that of a single disk alone, thus improving data access
and storage. Use of two new identical hard disk drives is required for this setup.

RAID 1 (Data mirroring) copies and maintains an identical image of data from one drive to
a second drive. If one drive fails, the disk array management software directs all applications
to the surviving drive as it contains a complete copy of the data in the other drive. This RAID
conguration provides data protection and increases fault tolerance to the entire system. Use
two new drives or use an existing drive and a new drive for this setup. The new drive must be
of the same size or larger than the existing drive.

RAID 10 is data striping and data mirroring combined without parity (redundancy data) having
to be calculated and written. With the RAID 10 conguration you get all the benets of both
RAID 0 and RAID 1 congurations. Use four new hard disk drives or use an existing drive
and three new drives for this setup.

ASUS PRIME B450M-A II

2-5

2-6

Chapter 2: BIOS and RAID Support

Appendix

Notices

FCC Compliance Information

Responsible Party: Asus Computer International

Address: 48720 Kato Rd., Fremont, CA 94538, USA

Phone / Fax No: [phone] / [phone]

This 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.

This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.

- Consult the dealer or an experienced radio/TV technician for help.

ASUS PRIME B450M-A II

A-1

Compliance Statement of Innovation, Science and Economic
Development Canada (ISED)

This device complies with Innovation, Science and Economic Development Canada licence
exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device
may not cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device.

CAN ICES-3(B)/NMB-3(B)

Déclaration de conformité de Innovation, Sciences et
Développement économique Canada (ISED)

Le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement
économique Canada applicables aux appareils radio exempts de licence. L’exploitation est
autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage,
et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d’en compromettre le fonctionnement.

CAN ICES-3(B)/NMB-3(B)

VCCI: Japan Compliance Statement

Class B ITE

KC: Korea Warning Statement

A-2

Appendices

Google™ License Terms

Copyright© 2020 Google Inc. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this le

except in compliance with the License. You may obtain a copy of the License at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the
License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
ANY KIND, either express or implied.

See the License for the specic language governing permissions and limitations under the

License.

Declaration of compliance for product environmental
regulation

ASUS follows the green design concept to design and manufacture our products, and
makes sure that each stage of the product life cycle of ASUS product is in line with global
environmental regulations. In addition, ASUS disclose the relevant information based on
regulation requirements.

Please refer to http://csr.asus.com/Compliance.htm for information disclosure based on
regulation requirements ASUS is complied with:

EU REACH and Article 33

Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://csr.asus.com/english/REACH.htm.

EU RoHS

This product complies with the EU RoHS Directive. For more details, see
http://csr.asus.com/english/article.aspx?id=35

India RoHS

This product complies with the “India E-Waste (Management) Rules, 2016” and prohibits
use of lead, mercury, hexavalent chromium, polybrominated biphenyls (PBBs) and
polybrominated diphenyl ethers (PBDEs) in concentrations exceeding 0.1% by weight in
homogenous materials and 0.01% by weight in homogenous materials for cadmium, except
for the exemptions listed in Schedule II of the Rule.

Vietnam RoHS

ASUS products sold in Vietnam, on or after September 23, 2011,meet the requirements of
the Vietnam Circular 30/2011/TT-BCT.

Các sản phẩm ASUS bán tại Việt Nam, vào ngày 23 tháng 9 năm2011 trở về sau, đều phải đáp ứng
các yêu cầu của Thông tư 30/2011/TT-BCT của Việt Nam.

Turkey RoHS

AEEE Yönetmeliğine Uygundur

ASUS PRIME B450M-A II

A-3

ASUS Recycling/Takeback Services

ASUS recycling and takeback programs come from our commitment to the highest standards
for protecting our environment. We believe in providing solutions for you to be able to
responsibly recycle our products, batteries, other components as well as the packaging
materials. Please go to http://csr.asus.com/english/Takeback.htm for detailed recycling
information in different regions.

DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.

DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.

Regional notice for California

WARNING

Cancer and Reproductive Harm ­www.P65Warnings.ca.gov

A-4

Appendices

English ASUSTeK Computer Inc. hereby declares that this device is in
compliance with the essential requirements and other relevant provisions of
related Directives. Full text of EU declaration of conformity is available at:
www.asus.com/support

Français AsusTek Computer Inc. déclare par la présente que cet appareil est
conforme aux critères essentiels et autres clauses pertinentes des directives
concernées. La déclaration de conformité de l’UE peut être téléchargée à
partir du site Internet suivant : www.asus.com/support

Deutsch ASUSTeK Computer Inc. erklärt hiermit, dass dieses Gerät mit
den wesentlichen Anforderungen und anderen relevanten Bestimmungen
der zugehörigen Richtlinien übereinstimmt. Der gesamte Text der EU­Konformitätserklärung ist verfügbar unter: www.asus.com/support

Italiano ASUSTeK Computer Inc. con la presente dichiara che questo
dispositivo è conforme ai requisiti essenziali e alle altre disposizioni
pertinenti con le direttive correlate. Il testo completo della dichiarazione di
conformità UE è disponibile all’indirizzo: www.asus.com/support

Русский Компания ASUS заявляет, что это устройство соответствует
основным требованиям и другим соответствующим условиям
соответствующих директив. Подробную информацию, пожалуйста,
смотрите на www.asus.com/support

Български С настоящото ASUSTeK Computer Inc. декларира, че това
устройство е в съответствие със съществените изисквания и другите
приложими постановления на свързаните директиви. Пълният текст на
декларацията за съответствие на ЕС е достъпна на адрес:

www.asus.com/support
Hrvatski ASUSTeK Computer Inc. ovim izjavljuje da je ovaj uređaj sukladan

s bitnim zahtjevima i ostalim odgovarajućim odredbama vezanih direktiva.
Cijeli tekst EU izjave o sukladnosti dostupan je na: www.asus.com/support

Čeština Společnost ASUSTeK Computer Inc. tímto prohlašuje, že
toto zařízení splňuje základní požadavky a další příslušná ustanovení
souvisejících směrnic. Plné znění prohlášení o shodě EU je k dispozici na
adrese: www.asus.com/support

Dansk ASUSTeK Computer Inc. erklærer hermed, at denne enhed er i
overensstemmelse med hovedkravene og andre relevante bestemmelser i
de relaterede direktiver. Hele EU-overensstemmelseserklæringen kan ndes
på: www.asus.com/support

Nederlands ASUSTeK Computer Inc. verklaart hierbij dat dit apparaat
voldoet aan de essentiële vereisten en andere relevante bepalingen van
de verwante richtlijnen. De volledige tekst van de EU-verklaring van
conformiteit is beschikbaar op: www.asus.com/support

Eesti Käesolevaga kinnitab ASUSTeK Computer Inc, et see seade vastab
asjakohaste direktiivide oluliste nõuetele ja teistele asjassepuutuvatele
sätetele. EL vastavusdeklaratsiooni täielik tekst on saadaval järgmisel
aadressil: www.asus.com/support

Suomi ASUSTeK Computer Inc. ilmoittaa täten, että tämä laite on
asiaankuuluvien direktiivien olennaisten vaatimusten ja muiden tätä
koskevien säädösten mukainen. EU-yhdenmukaisuusilmoituksen koko teksti
on luettavissa osoitteessa: www.asus.com/support

Ελληνικά Με το παρόν, η AsusTek Computer Inc. δηλώνει ότι αυτή
η συσκευή συμμορφώνεται με τις θεμελιώδεις απαιτήσεις και άλλες
σχετικές διατάξεις των Οδηγιών της ΕΕ. Το πλήρες κείμενο της δήλωσης
συμβατότητας είναι διαθέσιμο στη διεύθυνση: www.asus.com/support

Magyar Az ASUSTeK Computer Inc. ezennel kijelenti, hogy ez az eszköz
megfelel a kapcsolódó Irányelvek lényeges követelményeinek és egyéb
vonatkozó rendelkezéseinek. Az EU megfelelőségi nyilatkozat teljes szövege
innen letölthető: www.asus.com/support

Latviski ASUSTeK Computer Inc. ar šo paziņo, ka šī ierīce atbilst saistīto
Direktīvu būtiskajām prasībām un citiem citiem saistošajiem nosacījumiem.
Pilns ES atbilstības paziņojuma teksts pieejams šeit: www.asus.com/support

Lietuvių „ASUSTeK Computer Inc.“ šiuo tvirtina, kad šis įrenginys atitinka
pagrindinius reikalavimus ir kitas svarbias susijusių direktyvų nuostatas. Visą
ES atitikties deklaracijos tekstą galima rasti: www.asus.com/support

Norsk ASUSTeK Computer Inc. erklærer herved at denne enheten er i
samsvar med hovedsaklige krav og andre relevante forskrifter i relaterte
direktiver. Fullstendig tekst for EU-samsvarserklæringen nnes på:
www.asus.com/support

Polski Firma ASUSTeK Computer Inc. niniejszym oświadcza, że
urządzenie to jest zgodne z zasadniczymi wymogami i innymi właściwymi
postanowieniami powiązanych dyrektyw. Pełny tekst deklaracji zgodności
UE jest dostępny pod adresem: www.asus.com/support

Português A ASUSTeK Computer Inc. declara que este dispositivo está em
conformidade com os requisitos essenciais e outras disposições relevantes
das Diretivas relacionadas. Texto integral da declaração da UE disponível em:
www.asus.com/support

Română ASUSTeK Computer Inc. declară că acest dispozitiv se conformează
cerinţelor esenţiale şi altor prevederi relevante ale directivelor conexe. Textul
complet al declaraţiei de conformitate a Uniunii Europene se găseşte la:
www.asus.com/support

Srpski ASUSTeK Computer Inc. ovim izjavljuje da je ovaj uređaj u saglasnosti
sa osnovnim zahtevima i drugim relevantnim odredbama povezanih Direktiva.
Pun tekst EU deklaracije o usaglašenosti je dostupan da adresi:
www.asus.com/support

Slovensky Spoločnosť ASUSTeK Computer Inc. týmto vyhlasuje, že toto
zariadenie vyhovuje základným požiadavkám a ostatým príslušným
ustanoveniam príslušných smerníc. Celý text vyhlásenia o zhode pre štáty EÚ
je dostupný na adrese: www.asus.com/support

Slovenščina ASUSTeK Computer Inc. izjavlja, da je ta naprava skladna z
bistvenimi zahtevami in drugimi ustreznimi določbami povezanih direktiv.
Celotno besedilo EU-izjave o skladnosti je na voljo na spletnem mestu:
www.asus.com/support

Español Por la presente, ASUSTeK Computer Inc. declara que este dispositivo
cumple los requisitos básicos y otras disposiciones pertinentes de las
directivas relacionadas. El texto completo de la declaración de la UE de
conformidad está disponible en: www.asus.com/support

Svenska ASUSTeK Computer Inc. förklarar härmed att denna
enhet överensstämmer med de grundläggande kraven och andra
relevanta föreskrifter i relaterade direktiv. Fulltext av EU-försäkran om
överensstämmelse nns på: www.asus.com/support

Українська ASUSTeK Computer Inc. заявляє, що цей пристрій відповідає
основним вимогам та іншим відповідним положенням відповідних
Директив. Повний текст декларації відповідності стандартам ЄС доступний
на: www.asus.com/support

Türk çe AsusTek Computer Inc., bu aygıtın temel gereksinimlerle ve ilişkili
Yönergelerin diğer ilgili koşullarıyla uyumlu olduğunu beyan eder. AB
uygunluk bildiriminin tam metni şu adreste bulunabilir:
www.asus.com/support

Bosanski ASUSTeK Computer Inc. ovim izjavljuje da je ovaj uređaj usklađen
sa bitnim zahtjevima i ostalim odgovarajućim odredbama vezanih direktiva.
Cijeli tekst EU izjave o usklađenosti dostupan je na: www.asus.com/support

ASUS PRIME B450M-A II

A-5

ASUS contact information

ASUSTeK COMPUTER INC.

Address 1F., No. 15, Lide Rd., Beitou Dist., Taipei City 112, Taiwan
Telephone [phone]
Fax [phone]
Web site https://www.asus.com

Technical Support

Telephone [phone]
Online support https://qr.asus.com/techserv

ASUS COMPUTER INTERNATIONAL (America)

Address 48720 Kato Rd., Fremont, CA 94538, USA
Telephone [phone]
Fax [phone]
Web site https://www.asus.com/us/

Technical Support

Support fax [phone]
Telephone [phone]
Online support https://qr.asus.com/techserv

ASUS COMPUTER GmbH (Germany and Austria)

Address Harkortstrasse 21-23, 40880 Ratingen, Germany
Web site https://www.asus.com/de
Online contact https://www.asus.com/support/Product/ContactUs/

Services/questionform/?lang=de-de

Technical Support

Telephone (DE) [phone]
Telephone (AT) [phone]
Online support https://www.asus.com/de/support

A-6

Appendices