ASROCK B450M PRO4 ユーザーマニュアル

Version 1.0

Published October 2020

Copyright Notice:

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.

1

English

B450M Pro4

Motherboard Layout

English

2

No. Description

1 ATX 12V Power Connector (ATX12V1)

2 CPU/Water Pump Fan Connector (CPU_FAN2/WP)

3 CPU Fan Connector (CPU_FAN1)

4 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)

5 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)

6 AMD Fan LED Header (AMD_FAN_LED1)

7 ATX Power Connector (ATXPWR1)

8 USB 3.2 Gen1 Header (USB3_56)

9 SATA3 Connector (SATA3_3) (Upper)

10 SATA3 Connector (SATA3_4) (Lower)

11 SATA3 Connector (SATA3_2) (Lower)

12 SATA3 Connector (SATA3_1) (Upper)

13 System Panel Header (PANEL1)

14 Power LED and Speaker Header (SPK_PLED1)

15 Chassis Intrusion Header (CI1)

16 Chassis/Water Pump Fan Connector (CHA_FAN2/WP)

17 Chassis/Water Pump Fan Connector (CHA_FAN3/WP)

18 Clear CMOS Jumper (CLRCMOS1)

19 USB 2.0 Header (USB_5_6)

20 USB 2.0 Header (USB_3_4)

21 COM Port Header (COM1)

22 TPM Header (TPMS1)

23 RGB LED Header (RGB_HEADER1)

24 Addressable LED Header (ADDR_LED1)

25 Front Panel Audio Header (HD_AUDIO1)

26 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)

3

English

B450M Pro4

I/O Panel

No. Description No. Description

1 USB 2.0 Ports (USB_1_2) 8 USB 3.2 Gen1 Ports (USB3_12)

2 D-Sub Port 9 USB 3.2 Gen2 Type-A Port (USB31_TA_1)

3 LAN RJ-45 Port* 10 USB 3.2 Gen2 Type-C Port (USB31_TC_1)

4 Line In (Light Blue)** 11 HDMI Port

5 Front Speaker (Lime)** 12 DVI-D Port

6 Microphone (Pink)** 13 PS/2 Mouse/Keyboard Port

7 USB 3.2 Gen1 Ports (USB3_34)

* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.

Activity / Link LED Speed LED

Status Description Status Description

O No Link O 10Mbps connection

Blinking Data Activity Orange 100Mbps connection

On Link Green 1Gbps connection

ACT/LINK LED

SPEED LED

LAN Port

1

8 7

9

1113

3

6

5

4

10

12

2

** Function of the Audio Ports in 7.1-channel Conguration:

Port Function

Light Blue (Rear panel) Rear Speaker Out

Lime (Rear panel) Front Speaker Out

Pink (Rear panel) Central /Subwoofer Speaker Out

Lime (Front panel) Side Speaker Out

English

4

Chapter 1 Introduction

ank you for purchasing ASRock B450M Pro4 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.

1.1 Package Contents

•

ASRock B450M Pro4 Motherboard (Micro ATX Form Factor)

•

ASRock B450M Pro4 Quick Installation Guide

•

ASRock B450M Pro4 Support CD

•

1 x I/O Panel Shield

•

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

•

2 x Screws for M.2 Sockets (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.

5

English

B450M Pro4

1.2 Specications

Platform

•

Micro ATX Form Factor

•

Solid Capacitor design

CPU

•

AMD AM4 Socket

•

Digi Power design

•

9 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/)

* Please refer to page 21 for the table for AMD non-XMP memory

frequency support. For more details, please refer to the QVL on

ASRock’s website.

•

Max. capacity of system memory: 64GB

•

Supports Extreme Memory Prole (XMP) memory modules

•

15μ Gold Contact in DIMM Slots

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6

Expansion

Slot

AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle

Ridge)

•

1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*

•

1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)

AMD Ryzen series CPUs (Picasso, Raven Ridge)

•

1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode)*

•

1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)

AMD Athlon series CPUs

•

1 x PCI Express 3.0 x16 Slot (PCIE2: x4 mode)*

•

1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)

•

* Supports NVMe SSD as boot disks

•

1 x PCI Express 2.0 x1 Slot

•

Supports AMD Quad CrossFireX

TM

and CrossFireX

TM

Graphics

•

Integrated AMD Radeon

TM

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.

•

ree graphics output options: D-Sub, DVI-D and HDMI

•

Supports Triple Monitor

•

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

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

•

Supports DVI-D with max. resolution up to 1920x1200 @

60Hz

•

Supports D-Sub with max. resolution up to 1920x1200 @

60Hz

•

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 DVI-D and HDMI 1.4 Ports

•

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

7

English

B450M Pro4

Audio

•

7.1 CH HD Audio with Content Protection (Realtek ALC892

Audio Codec)

•

Premium Blu-ray Audio support

•

Supports Surge Protection

•

ELNA Audio Caps

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

Rear Panel

I/O

•

1 x PS/2 Mouse/Keyboard Port

•

1 x D-Sub Port

•

1 x DVI-D Port

•

1 x HDMI Port

•

2 x USB 2.0 Ports (Supports ESD Protection)

•

1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Pro-

tection)

•

1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Pro-

tection)

•

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*

* M2_2 and SATA3_3 share lanes. If either one of them is in use,

the other one will be disabled.

•

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

•

1 x M.2 Socket (M2_2), supports M Key type

2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module

English

8

Connector

•

1 x COM Port Header

•

1 x TPM Header

•

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.

•

1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan

Speed Control)

* e CPU/Water Pump Fan supports the water cooler fan of

maximum 2A (24W) fan power.

•

3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan

Speed Control)

* e Chassis/Water Pump Fan supports the water cooler fan of

maximum 2A (24W) fan power.

* CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP and

CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use.

•

1 x 24 pin ATX Power Connector

•

1 x 8 pin 12V Power Connector

•

1 x Front Panel Audio Connector

•

2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD

Protection)

•

1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)

(Supports ESD Protection)

BIOS

Feature

•

AMI UEFI Legal BIOS with multilingual GUI support

•

Supports “Plug and Play”

•

ACPI 5.1 compliance wake up events

•

Supports jumperfree

•

SMBIOS 2.3 support

•

DRAM Voltage multi-adjustment

9

English

B450M Pro4

Hardware

Monitor

•

Temperature Sensing: CPU, CPU/Water Pump, Chassis/Wa-

ter Pump Fans

•

Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water

Pump Fans

•

Quiet Fan (Auto adjust chassis fan speed by CPU tempera-

ture): CPU, CPU/Water Pump, Chassis/Water Pump Fans

•

Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/

Water Pump Fans

•

CASE OPEN detection

•

Voltage monitoring: +12V, +5V, +3.3V, Vcore

OS

•

Microso® Windows® 10 64-bit

Certica-

tions

•

FCC, CE

•

ErP/EuP ready (ErP/EuP ready power supply is required)

* For detailed product information, please visit our website:

http://www.asrock.com

Please realize that there is a certain risk involved with overclocking, including adjust-

ing the setting in the BIOS, applying Untied Overclocking Technology, or using third-

party overclocking tools. Overclocking may aect your system’s stability, or even cause

damage to the components and devices of your system. It should be done at your own

risk and expense. We are not responsible for possible damage caused by overclocking.

English

10

is is a Micro ATX form factor motherboard. Before you install the motherboard,

study the conguration of your chassis to ensure that the motherboard ts into it.

Pre-installation Precautions

Take note of the following precautions before you install motherboard components

or change any motherboard settings.

•

Make sure to unplug the power cord before installing or removing the motherboard.

Failure to do so may cause physical injuries to you and damages to motherboard

components.

•

In order to avoid damage from static electricity to the motherboard’s components,

NEVER place your motherboard directly on a carpet. Also remember to use a grounded

wrist strap or touch a safety grounded object before you handle the components.

•

Hold components by the edges and do not touch the ICs.

•

Whenever you uninstall any components, place them on a grounded anti-static pad or

in the bag that comes with the components.

•

When placing screws to secure the motherboard to the chassis, please do not over-

tighten the screws! Doing so may damage the motherboard.

Chapter 2 Installation

11

English

B450M Pro4

2.1 Installing the CPU

Unplug all power cables before installing the CPU.

2

1

English

12

3

13

English

B450M Pro4

2.2 Installing the CPU Fan and Heatsink

Aer you install the CPU into this motherboard, it is necessary to install a larger

heatsink and cooling fan to dissipate heat. You also need to spray thermal grease

between the CPU and the heatsink to improve heat dissipation. Make sure that the

CPU and the heatsink are securely fastened and in good contact with each other.

Installing the CPU Box Cooler SR1

Please turn o the power or remove the power cord before changing a CPU or heatsink.

1

2

English

14

3

4

C

P

U

_

FA

N

1

4-pin FAN cable

15

English

B450M Pro4

Installing the AM4 Box Cooler SR2

1

2

English

16

3

17

English

B450M Pro4

4-pin FAN cable

RGB LED Cable

+12V

*e diagram shown here are for reference only. Please refer to page 31 for the orientation of

AMD Fan LED Header (AMD_FAN_LED1).

5

CPU_

FA

N

1

AM

D

_

FA

N

_

L

E

D

1

4

C

P

U

_

FA

N

1

4-pin FAN cable

English

18

Installing the AM4 Box Cooler SR3

1

2

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