asus b550m-plus-wifi motherboard

TUF GAMING
B550M-PLUS

Motherboard

E17265
Revised Edition v2

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

TUF GAMING B550M-PLUS 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) .................................................................... 1-8

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

1.5 M.2 installation ............................................................................................1-10

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 TUF GAMING B550M-PLUS motherboard

2 x SATA 6Gb/s cables

1 x I/O Shield
1 x M.2 Rubber package
1 x M.2 SSD screw package
1 x TUF Gaming sticker

1 x Support DVD

1 x TUF Certication card

1 x User manual

TUF GAMING B550M-PLUS specifications summary

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

CPU

Chipset AMD B550 Chipset

Memory

Graphics

Expansion Slots

Multi-GPU Support

Radeon™ Graphics Processors*

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

3rd Gen AMD Ryzen™ Processors

4 x DIMM, Max. 128GB, DDR4 4600(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*

3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors

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 (Qualified Vendors Lists).

1 x DisplayPort 1.2

TM

1 x HDMI

*Graphics specifications may vary between CPU types.

2.1(4K@60Hz)

3rd Gen AMD Ryzen™ Processors

1 x PCIe 4.0 x16 slot (supports x16 mode)

3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors

1 x PCIe 3.0 x16 slot (supports x16 mode)

AMD B550 Chipset

1 x PCIe 3.0 x16 slot (supports x4 mode)

1 x PCIe 3.0 x1 slot

*Support PCIe bifurcation for RAID on CPU function.

Supports AMD 2-Way CrossFireX™ Technology

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TUF GAMING B550M-PLUS specifications summary

Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
3rd Gen AMD Ryzen™ Processors

M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA

modes)

3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors

Storage

Ethernet

USB

Audio

Back Panel I/O Ports

M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA

modes)

AMD B550 Chipset

M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 &

SATA modes)

4 x SATA 6Gb/s ports

Support RAID 0, 1, 10

1 x Realtek RTL8125B 2.5Gb Ethernet

Rear USB (Total 8 ports)

2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C®)

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

Realtek ALC S1200A 7.1-Channel High Definition Audio CODEC

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

- Supports up to 24-Bit/192 kHz playback

Audio Features

- Rear optical S/PDIF out port

- Premium Japanese audio capacitors

- Audio Shielding

- Dedicated audio PCB layers

- Audio cover

2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C®)

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

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

1 x DisplayPort

1 x HDMITM port

1 x Realtek RTL8125B 2.5Gb Ethernet port

5 x Audio jacks

1 x Optical S/PDIF out port

1 x BIOS FlashBack™ button

1 x PS/2 Keyboard/Mouse combo port

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vii

TUF GAMING B550M-PLUS specifications summary

Fan and cooling related

1 x 4-pin CPU Fan header

1 x 4-pin CPU OPT 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

2 x M.2 slots (Key M)

4 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 Addressable Gen 2 header

2 x AURA RGB headers

1 x Clear CMOS header

1 x COM Port header

1 x Front Panel Audio header (AAFP)

1 x Speaker header

1 x SPI TPM header (14-1pin)

1 x 10-1 pin System Panel header

ASUS TUF PROTECTION

- ASUS DIGI+ VRM (Digital power design with DrMOS)

- ASUS Enhanced DRAM Overcurrent Protection

- ASUS ESD Guards

- TUF LANGuard

- ASUS Overvoltage Protection

- ASUS SafeSlot

- ASUS Stainless-Steel Back I/O

ASUS Q-Design

- ASUS Q-DIMM

- ASUS Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device
[yellow green])

- ASUS Q-Slot

ASUS Thermal Solution

- Aluminum M.2 heatsink

ASUS EZ DIY

- BIOS FlashBack™ button

- BIOS FlashBack™ LED

- Procool

AURA Sync

- AURA RGB headers

- Addressable Gen 2 RGB header

viii

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TUF GAMING B550M-PLUS specifications summary

ASUS Exclusive Software

Armoury Crate

- Aura Creator

- Aura Sync

- AI Noise-Canceling Microphone

AI Suite 3

- Performance and Power Saving Utility

TurboV EVO
EPU

DIGI+ VRM
Fan Xpert 2+

Software
Features

BIOS 256 Mb Flash ROM, UEFI AMI BIOS
Manageability WOL by PME, PXE
Operating

System

Form Factor

- EZ update

TUF GAMING CPU-Z

AI Charger

ASUS Turbo LAN

DAEMON Tools

DTS Custom for GAMING Headsets

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)

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

latest specications.

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