Motherboard

PRIME B450-PLUS

ii

E14214

First Edition

May 2018

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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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Chapter 1: Product introduction

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

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

System memory ...................................................................................... 1-10

Chapter 2: BIOS information

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

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

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

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

Appendix

iv

• 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.

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

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

Typography

vi

Package contents

Check your motherboard package for the following items.

Audio Features

viii

- ASUS Q-DIMM

- ASUS Q-Slot

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 3

ASUS Quiet

Thermal

Solution

Internal

connectors

Specications are subject to change without notice.

Manageability WOL by PME, PXE

Support DVD

Drivers

ASUS Utilities

ASUS Update

Anti-virus software (OEM version)

OS support Windows

®

10 (64-bit)

Form factor ATX form factor: 12” x 9.2” (30.5 cm x 23.4 cm)

• USB 3.1 Gen 1/Gen 2 devices can only be used for data storage.

• Due to the design of AMD AM4 series chipset, all USB devices connected to the USB

2.0 and USB 3.1 Gen 1/Gen 2 ports are controlled by the xHCI controller.

• We strongly recommend that you connect USB 3.1 Gen 2 devices to USB 3.1 Gen 2

ports for faster and better performance from your USB 3.1 Gen 2 devices.

Audio 2.1, 4.1, 5.1 or 7.1-channel conguration

Port

Central Processing Unit (CPU)

The motherboard comes with an AMD AM4 socket designed for AMD

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 pins and damaging the CPU!

Installing the CPU

Apply the Thermal Interface Material to the CPU heatsink and CPU before you install the

heatsink and fan if necessary.

2

Installing the CPU heatsink and fan assembly

2

2

4

System memory

Overview

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:

• 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

Channel A DIMM_A1 & DIMM_A2*

Channel B DIMM_B1 & DIMM_B2*

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

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