Motherboard

PRIME B450M-A

ii

E14212

First Edition

May 2018

Copyright © 2018 ASUSTeK COMPUTER INC. All Rights Reserved.

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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF

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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

This product contains copyrighted software that is licensed under the General Public License (“GPL”),

under the Lesser General Public License Version (“LGPL”) and/or other Free Open Source Software

Licenses. Such software in this product is distributed without any warranty to the extent permitted by the

applicable law. Copies of these licenses are included in this product.

Where the applicable license entitles you to the source code of such software and/or other additional data,

you may obtain it for a period of three years after our last shipment of the product, either

(1) for free by downloading it from http://support.asus.com/download

or

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where you want to have it shipped to, by sending a request to:

product for which you wish to obtain the corresponding source code and your contact details so that we

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Software licenses. If however you encounter any problems in obtaining the full corresponding source

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the product and describing the problem (please DO NOT send large attachments such as source code

archives, etc. to this email address).

Chapter 1: Product introduction

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

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

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

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

Chapter 2: BIOS information

BIOS setup program ................................................................................. 2-1

EZ Mode ..................................................................................................... 2-2

Advanced Mode ........................................................................................ 2-3

Exit menu ................................................................................................... 2-4

iv

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

• 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.

About this guide

supports. It includes descriptions of the switches, jumpers, and connectors on the

motherboard.

• Chapter 2: BIOS information

This chapter discusses changing system settings through the BIOS Setup menus.

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

updates.

throughout this manual.

Typography

vi

Package contents

Check your motherboard package for the following items.

viii

- Stylish Fanless Design: Chipset Heat-sink solution

- ASUS Fan Xpert 2+

1 x PS/2 keyboard (purple)

1 x PS/2 mouse port (green)

3 x Audio jacks support 8-channel audio output

1 x USB 3.1 Gen 1 connector supports additional 2 USB 3.1 Gen 1 ports

2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports

1 x M.2 socket 3 for M Key and type 2242/2260/2280/22110 devices (both SATA

6 x SATA 6.0Gb/s connectors

1 x COM connector

1 x TPM connector

1 x 2-pin Clear CMOS header

1 x S/PDIF out connector

1 x Speaker connector

1 x System panel connector

128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-

language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, F3 My Favorites,

Last Modied log, F12 PrintScreen, ASUS User Prole, ASUS DRAM SPD

(Serial Presence Detect) memory information, F6 Qfan Control, F4 AURA ON/

OFF, F9 Search

uATX form factor: 9.6 in. x 9.5 in. (24.4 cm x 24.0 cm)

Specications are subject to change without notice.

ASUS PRIME B450M-A

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

any motherboard settings.

1-8

ASUS PRIME B450M-A