ASROCK B450M/ac R2.0 Manuel utilisateur

Version 1.0

Published September 2020

No part of this documentation may be reproduced, transcribed, transmitted, or

translated in any language, in any form or by any means, except duplication of

documentation by the purchaser for backup purpose, without written consent of

ASRock Inc.

Products and corporate names appearing in this documentation 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.

Disclaimer:

Specications and information contained in this documentation are furnished for

informational use only and subject to change without notice, and should not be

constructed as a commitment by ASRock. ASRock assumes no responsibility for

any errors or omissions that may appear in this documentation.

With respect to the contents of this documentation, ASRock does not provide

warranty of any kind, either expressed or implied, including but not limited to

the implied warranties or conditions of merchantability or tness for a particular

purpose.

In no event shall ASRock, its directors, ocers, employees, or agents be liable for

any indirect, special, incidental, or consequential damages (including damages for

loss of prots, loss of business, loss of data, interruption of business and the like),

even if ASRock has been advised of the possibility of such damages arising from any

defect or error in the documentation or product.

is 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.

CALIFORNIA, USA ONLY

e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance

controlled in Perchlorate Best Management Practices (BMP) regulations passed by the

California Legislature. When you discard the Lithium battery in California, USA, please

follow the related regulations in advance.

“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/

perchlorate”

ASRock Website: http://www.asrock.com

AUSTRALIA ONLY

Our goods come with guarantees that cannot be excluded under the Australian

Consumer Law. You are entitled to a replacement or refund for a major failure and

compensation for any other reasonably foreseeable loss or damage caused by our

goods. You are also entitled to have the goods repaired or replaced if the goods fail

to be of acceptable quality and the failure does not amount to a major failure. If

you require assistance please call ASRock Tel : +886-2-28965588 ext.123 (Standard

International call charges apply)

e terms HDMI® and HDMI High-Denition Multimedia Interface, and the

HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the

United States and other countries.

CE Warning

is device complies with directive 2014/53/EU issued by the Commision of the European

Community.

is equipment complies with EU radiation exposure limits set forth for an uncontrolled

environment.

is equipment should be installed and operated with minimum distance 20cm between

the radiator & your body.

Operations in the 5.15-5.35GHz band are restricted to indoor usage only.

Radio transmit power per transceiver type

Function Frequency Maximum Output Power (EIRP)

WiFi

2400-2483.5 MHz 18.5 + / -1.5 dbm

5150-5250 MHz 21.5 + / -1.5 dbm

5250-5350 MHz 18.5 + / -1.5 dbm (no TPC)

21.5 + / -1.5 dbm (TPC)

5470-5725 MHz 25.5 + / -1.5 dbm (no TPC)

28.5 + / -1.5 dbm (TPC)

Bluetooth 2400-2483.5 MHz 8.5 + / -1.5 dbm

Contents

Chapter 1 Introduction 1

1.1 Package Contents 1

1.2 Specications 2

1.3 Motherboard Layout 7

1.4 I/O Panel 9

1.5 WiFi-802.11ac Module and ASRock WiFi 2.4/5 GHz

Antenna 11

Chapter 2 Installation 13

2.1 Installing the CPU 14

2.2 Installing the CPU Fan and Heatsink 16

2.3 Installing Memory Modules (DIMM) 25

2.4 Expansion Slots (PCI Express Slots) 28

2.5 Jumpers Setup 29

2.6 Onboard Headers and Connectors 30

2.7 M.2_SSD (NGFF) Module Installation Guide (M2_1) 35

Chapter 3 Software and Utilities Operation 38

3.1 Installing Drivers 38

3.2 A-Tuning 39

3.2.1 Installing A-Tuning 39

3.2.2 Using A-Tuning 39

3.3 ASRock Live Update & APP Shop 42

3.3.1 UI Overview 42

3.3.2 Apps 43

3.3.3 BIOS & Drivers 46

3.3.4 Setting 47

3.5 ASRock Polychrome SYNC 48

Chapter 4 UEFI SETUP UTILITY 51

4.1 Introduction 51

4.1.1 UEFI Menu Bar 51

4.1.2 Navigation Keys 52

4.2 Main Screen 53

4.3 OC Tweaker Screen 54

4.4 Advanced Screen 57

4.4.1 CPU Conguration 58

4.4.2 North Bridge Conguration 59

4.4.3 South Bridge Conguration 60

4.4.4 Storage Conguration 61

4.4.5 ACPI Conguration 62

4.4.6 Trusted Computing 63

4.4.7 AMD CBS 64

4.4.8 AMD PBS 72

4.5 Tools 73

4.6 Hardware Health Event Monitoring Screen 74

4.7 Security Screen 76

4.8 Boot Screen 77

4.9 Exit Screen 79

B450M/ac R2.0

English

Chapter 1 Introduction

ank you for purchasing ASRock B450M/ac R2.0 motherboard, a reliable

motherboard produced under ASRock’s consistently stringent quality control.

It delivers excellent performance with robust design conforming to ASRock’s

commitment to quality and endurance.

In this manual, Chapter 1 and 2 contains the introduction of the motherboard

and step-by-step installation guides. Chapter 3 contains the operation guide of the

soware and utilities. Chapter 4 contains the conguration guide of the BIOS setup.

1.1 Package Contents

• ASRock B450M/ac R2.0 Motherboard (Micro ATX Form Factor)

• ASRock B450M/ac R2.0 Quick Installation Guide

• ASRock B450M/ac R2.0 Support CD

• 1 x I/O Panel Shield

• 2 x Serial ATA (SATA) Data Cables (Optional)

• 2 x ASRock WiFi 2.4/5 GHz Antennas (Optional)

• 1 x Screw for M.2 Socket (Optional)

Because the motherboard specications and the BIOS soware might be updated, the

content of this manual will be subject to change without notice. In case any modica-

tions of this manual occur, the updated version will be available on ASRock’s website

without further notice. If you require technical support related to this motherboard,

please visit our website for specic information about the model you are using. You

may nd the latest VGA cards and CPU support list on ASRock’s website as well.

ASRock website http://www.asrock.com.

English

1.2 Specications

Platform • Micro ATX Form Factor

• 2oz Copper PCB

• Solid Capacitor design

CPU • AMD AM4 Socket

• Digi Power design

• 10 Power Phase design

Chipset • AMD Promontory B450

Memory • Dual Channel DDR4 Memory Technology

• 4 x DDR4 DIMM Slots

• AMD Ryzen series CPUs (Matisse) support DDR4

3200/2933/2667/2400/2133 ECC & non-ECC, un-buered

memory*

• AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4

3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-

buered memory*

• AMD Ryzen series CPUs (Picasso) support DDR4

2933/2667/2400/2133 non-ECC, un-buered memory*

• AMD Ryzen series CPUs (Summit Ridge) support DDR4

3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-

buered memory*

• AMD Ryzen series CPUs (Raven Ridge) support DDR4

3200+(OC)/2933/2667/2400/2133 non-ECC, un-buered

memory*

* For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only

supported with PRO CPUs.

* Please refer to Memory Support List on ASRock's website for

more information. (http://www.asrock.com/)

• Max. capacity of system memory: 64GB

• Supports Extreme Memory Prole (XMP) memory modules

• 15μ Gold Contact in DIMM Slots

Expansion

Slot

AMD Ryzen series CPUs (Matisse, Summit Ridge and

Pinnacle Ridge)

• 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*

• 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)

B450M/ac R2.0

English

AMD Ryzen series CPUs (Picasso, Raven Ridge)

• 1 x PCI Express 3.0 x16 Slot (PCIE1: x8 mode)*

1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)

AMD Athlon series CPUs

• 1 x PCI Express 3.0 x16 Slot (PCIE1: x4 mode)*

• 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)

* Supports NVMe SSD as boot disks

• Supports AMD Quad CrossFireXTM and CrossFireXTM

• 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-

802.11ac module (on the rear I/O)

Graphics • Integrated AMD RadeonTM Vega Series Graphics in Ryzen

Series APU*

* Actual support may vary by CPU

• DirectX 12, Pixel Shader 5.0

• Shared memory default 2GB. Max Shared memory supports

up to 16GB.

* e Max shared memory 16GB requires 32GB system memory

installed.

• Supports HDMI 1.4 with max. resolution up to 4K x 2K

(4096x2160) @ 24Hz / (3840x2160) @ 30Hz

• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and

HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant

HDMI monitor is required)

• Supports HDCP 1.4 with HDMI 1.4 Port

• Supports 4K Ultra HD (UHD) playback with HDMI 1.4 Port

Audio • 7.1 CH HD Audio with Content Protection (Realtek

ALC892/897 Audio Codec)

• Supports Surge Protection

LAN • PCIE x1 Gigabit LAN 10/100/1000 Mb/s

• Realtek RTL8111H

• Supports Wake-On-LAN

• Supports Lightning/ESD Protection

• Supports Energy Ecient Ethernet 802.3az

• Supports PXE

English

Wireless

LAN

• Intel® 802.11ac WiFi Module

• Supports IEEE 802.11a/b/g/n/ac

• Supports Dual-Band (2.4/5 GHz)

• Supports high speed wireless connections up to 433Mbps

• Supports Bluetooth 4.2 / 3.0 + High speed class II

Rear Panel

I/O

• 2 x Antenna Ports

• 1 x HDMI Port

• 2 x USB 2.0 Ports (Supports ESD Protection)

• 4 x USB 3.2 Gen1 Ports (Supports ESD Protection)

• 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED

LED)

• HD Audio Jacks: Line in / Front Speaker / Microphone

Storage • 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,

RAID 1 and RAID 10), NCQ, AHCI and Hot Plug

• 1 x Ultra M.2 Socket (M2_1), supports M Key type

2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32

Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge

and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon series

APU)*

* Supports NVMe SSD as boot disks

* Supports ASRock U.2 Kit

Connector • 1 x Chassis Intrusion Header

• 1 x Power LED and Speaker Header

• 1 x RGB LED Header

* Supports in total up to 12V/3A, 36W LED Strip

• 1 x Addressable LED Header

* Supports in total up to 5V/3A, 15W LED Strip

• 1 x AMD Fan LED Header

*e AMD Fan LED Header supports LED strips of maximum

load of 3A (36W) and length up to 2.5M.

• 1 x CPU Fan Connector (4-pin)

* e CPU Fan Connector supports the CPU fan of maximum

1A (12W) fan power.

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