ASRock B450M Pro4 Service Manual

5 (1)

Version 1.0

Published June 2018

Copyright©2018 ASRock INC. All rights reserved.

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 identification or explanation and to the owners’ benefit, without intent to

infringe.

Disclaimer:

Specifications 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 fitness for a particular purpose.

In no event shall ASRock, 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 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.

This 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

The 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)

The terms HDMI™ and HDMI High-Definition Multimedia Interface, and the HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

Contents

Chapter 1 Introduction

1

1.1

Package Contents

1

1.2

Specifications

2

1.3

Motherboard Layout

7

1.4

I/O Panel

9

Chapter 2 Installation

11

2.1

Installing the CPU

12

2.2

Installing the CPU Fan and Heatsink

14

2.3

Installing Memory Modules (DIMM)

22

2.4

Expansion Slots (PCI Express Slots)

25

2.5

Jumpers Setup

26

2.6

Onboard Headers and Connectors

27

2.7

CrossFireXTM and Quad CrossFireXTM Operation Guide

32

2.7.1

Installing Two CrossFireXTM-Ready Graphics Cards

32

2.7.2

Driver Installation and Setup

34

2.8

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

35

2.9

M.2_SSD (NGFF) Module Installation Guide (M2_2)

38

Chapter 3 Software and Utilities Operation

41

3.1

Installing Drivers

41

3.2

A-Tuning

42

3.2.1

Installing A-Tuning

42

3.2.2

Using A-Tuning

42

3.3

ASRock Live Update & APP Shop

45

3.3.1

UI Overview

45

3.3.2

Apps

46

3.3.3

BIOS & Drivers

49

3.3.4

Setting

50

3.4

ASRock Polychrome RGB

51

Chapter 4 UEFI SETUP UTILITY

54

4.1

Introduction

54

4.1.1

UEFI Menu Bar

54

4.1.2

Navigation Keys

55

4.2

Main Screen

56

4.3

OC Tweaker Screen

57

4.4

Advanced Screen

59

4.4.1

CPU Configuration

60

4.4.2

North Bridge Configuration

61

4.4.3

South Bridge Configuration

62

4.4.4

Storage Configuration

63

4.4.5

Super IO Configuration

64

4.4.6

ACPI Configuration

65

4.4.7

Trusted Computing

66

4.4.8

AMD CBS

67

4.4.9

AMD PBS

75

4.5

Tools

76

4.6

Hardware Health Event Monitoring Screen

78

4.7

Security Screen

81

4.8

Boot Screen

82

4.9

Exit Screen

84

B450M Pro4

Chapter 1 Introduction

Thank 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.

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

software and utilities. Chapter 4 contains the configuration guide of the BIOS setup.

Because the motherboard specifications and the BIOS software might be updated, the content of this manual will be subject to change without notice. In case any modifications 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 specific information about the model you are using. You may find the latest VGA cards and CPU support list on ASRock’s website as well. ASRock website http://www.asrock.com.

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)

English

1

English

1.2 Specifications

Platform

Micro ATX Form Factor

 

Solid Capacitor design

CPU

AMD AM4 Socket

 

Digi Power design

 

9 Power Phase design

 

Supports 105W Water Cooling (Pinnacle Ridge); Supports

 

 

95W Water Cooling (Summit Ridge); Supports 65W Water

 

 

Cooling (Raven Ridge)

Chipset

AMD Promontory B450

Memory

Dual Channel DDR4 Memory Technology

4 x DDR4 DIMM Slots

AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC)/2933/2667/2400/2133 ECC & non-ECC, unbuffered memory*

AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, unbuffered memory*

AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC)/2933(OC)/2667/2400/2133 non-ECC, un-buffered memory*

*For Ryzen Series CPUs (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 22 for DDR4 UDIMM maximum frequency support.

Max. capacity of system memory: 64GB

15μ Gold Contact in DIMM Slots

Expansion

AMD Ryzen series CPUs (Summit Ridge and Pinnacle Ridge)

Slot

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 (Raven Ridge)

 

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

 

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

2

B450M Pro4

* Supports NVMe SSD as boot disks

1 x PCI Express 2.0 x1 Slot

Supports AMD Quad CrossFireXTM and CrossFireXTM

Graphics

Integrated AMD RadeonTM Vega Series Graphics in Ryzen

 

 

Series APU*

 

* Actual support may vary by CPU

 

DirectX 12, Pixel Shader 5.0

 

Max. shared memory 2GB

 

Three graphics output options: D-Sub, DVI-D and HDMI

 

Supports Triple Monitor

 

Supports HDMI 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 Port (Compliant

 

 

HDMI monitor is required)

 

Supports HDCP with DVI-D and HDMI Ports

 

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

Audio

7.1 CH HD Audio with Content Protection (Realtek ALC892

 

 

Audio Codec)

 

* To configure 7.1 CH HD Audio, it is required to use an HD

 

front panel audio module and enable the multi-channel audio

 

feature through the audio driver.

 

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 Efficient Ethernet 802.3az

 

Supports PXE

English

3

English

Rear Panel

1 x PS/2 Mouse/Keyboard Port

I/O

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 3.1 Gen2 Type-A Port (10 Gb/s) (Supports ESD Pro-

 

tection)

 

1 x USB 3.1 Gen2 Type-C Port (10 Gb/s) (Supports ESD Pro-

 

tection)

 

4 x USB 3.1 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 Summit Ridge, Raven Ridge and Pinnacle Ridge)**

1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module**

**Supports NVMe SSD as boot disks

**Supports ASRock U.2 Kit

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

*The 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)

*The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

4

B450M Pro4

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

*The 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)

*The 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 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)

BIOS

AMI UEFI Legal BIOS with multilingual GUI support

Feature

Supports “Plug and Play”

 

ACPI 5.1 compliance wake up events

 

Supports jumperfree

 

SMBIOS 2.3 support

 

DRAM Voltage multi-adjustment

Hardware

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

Monitor

 

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

Microsoft® Windows® 10 64-bit

Certifica-

FCC, CE

tions

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

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5

* For detailed product information, please visit our website: http://www.asrock.com

Please realize that there is a certain risk involved with overclocking, including adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using thirdparty overclocking tools. Overclocking may affect 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

6

B450M Pro4

1.3 Motherboard Layout

 

 

 

1

 

 

 

 

 

2

3

 

4

5

 

6

 

 

 

PS2 Keyboard/

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

Mouse

 

 

 

 

 

 

 

 

 

 

 

 

 

AMD_FAN_LED1

 

 

USB 2.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T: USB1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B: USB2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU_FAN2/WP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU_FAN1

 

 

 

 

 

 

 

 

 

 

 

ATX12V1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DVI1

VGA1

 

 

 

 

 

 

 

 

Pro4

 

 

 

 

 

 

 

HDMI1

 

 

 

 

 

 

 

AM4 SOCKET

 

B450M

(64bit,288-pinmodule)

(64bit,288-pinmodule)

(64bit,288-pinmodule)

(64bit,288-pinmodule)

 

ATXPWR1

 

 

 

 

 

 

 

 

 

 

 

7

USB 3.1 Gen2

 

 

 

 

 

 

 

 

 

T: USB31_TA_1

 

 

 

 

 

 

 

 

 

B: USB31_TC_1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB 3.1 Gen1

 

USB 3.1 Gen2

 

 

 

 

 

 

 

DDR4 A1

DDR4 A2

DDR4 B1

DDR4 B2

 

 

 

T: USB1

 

 

 

 

 

 

 

 

 

 

 

B: USB2

 

 

 

 

 

 

 

 

 

 

 

USB 3.1 Gen1

RJ-45 LA

 

 

 

 

 

 

 

 

 

 

T: USB3

 

 

 

 

 

Ultra M.2

 

 

 

B: USB4

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

PCIe Gen3 x4

 

 

 

 

 

 

 

 

 

CHA_FAN1/WP

 

 

 

 

 

 

 

 

 

 

 

56

 

8

MI Bottom: CI N

FRON Center: T

LINE Top: IN

 

 

 

 

 

 

 

 

 

 

 

 

USB3_

 

BIOS

 

 

 

 

 

 

 

 

 

 

 

 

 

ROM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

1

 

 

 

PCIE1

 

 

 

 

_

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M2

 

 

 

 

 

 

 

 

 

 

 

 

 

M2_1_CT1

M2_1_CT2

M2_1_CT3

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SATA3 3

 

10

 

 

 

 

PCIE2

 

 

 

 

 

 

AMD

 

 

SATA34

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Promontory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B450

 

SATA3 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

CMOS

 

 

 

 

 

 

 

 

SATA32

 

 

 

 

 

Super

 

 

 

 

 

 

 

 

 

 

 

 

 

RoHS

 

 

Battery

 

 

 

 

 

 

 

 

 

12

 

 

 

I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCIE3

 

 

M2_2_CT4

M2_2_CT3

M2_2_CT2

M2_2_CT1

 

M2 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HD_AUDIO1

 

 

 

COM1

 

 

 

CHA_FAN3/WP CHA_FAN2/WP

SPK_PLED1

PANEL1

 

 

 

 

TPMS1

 

USB_3_4

USB_5_6

 

 

 

 

 

PLED PWRBTN

 

 

 

 

ADDR_LED1

RGB_HEADER1

 

 

 

 

CLRCMOS1

 

 

CI1

 

 

 

 

 

 

1

1

 

1

 

 

 

 

 

 

 

1

 

 

 

 

 

1

 

 

1

1

1

1

 

 

 

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HDLED RESET

 

 

 

 

24

 

 

 

21

 

 

 

 

17

 

15

14

13

 

 

English

7

No. Description

1ATX 12V Power Connector (ATX12V1)

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

3CPU Fan Connector (CPU_FAN1)

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

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

6AMD Fan LED Header (AMD_FAN_LED1)

7ATX Power Connector (ATXPWR1)

8USB 3.1 Gen1 Header (USB3_56)

9SATA3 Connector (SATA3_3)

10SATA3 Connector (SATA3_4)

11SATA3 Connector (SATA3_2)

12SATA3 Connector (SATA3_1)

13System Panel Header (PANEL1)

14Power LED and Speaker Header (SPK_PLED1)

15Chassis Intrusion Header (CI1)

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

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

18Clear CMOS Jumper (CLRCMOS1)

19USB 2.0 Header (USB_5_6)

20USB 2.0 Header (USB_3_4)

21COM Port Header (COM1)

22TPM Header (TPMS1)

23RGB LED Header (RGB_HEADER1)

24Addressable LED Header (ADDR_LED1)

25Front Panel Audio Header (HD_AUDIO1)

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

English

8

B450M Pro4

1.4 I/O Panel

4

 

 

1

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

12

11

9

8

7

6

 

 

 

 

10

 

 

 

No.

Description

 

No.

Description

 

 

 

1

USB 2.0 Ports (USB_1_2)

8

USB 3.1 Gen1 Ports (USB3_12)

 

2

D-Sub Port

 

9

USB 3.1 Gen2 Type-A Port (USB31_TA_1)

3

LAN RJ-45 Port*

10

USB 3.1 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

 

 

7USB 3.1 Gen1 Ports (USB3_34)

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

ACT/LINK LED SPEED LED

LAN Port

 

 

 

 

 

 

Activity / Link LED

 

Speed LED

 

 

 

 

 

Status

 

Description

 

Status

 

Description

Off

 

No Link

 

Off

 

10Mbps connection

 

 

 

Blinking

 

Data Activity

 

Orange

 

100Mbps connection

On

 

Link

 

Green

 

1Gbps connection

 

 

 

 

 

 

 

English

9

** To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multichannel audio feature through the audio driver.

Please set Speaker Configuration to “7.1 Speaker”in the Realtek HD Audio Manager.

Function of the Audio Ports in 7.1-channel Configuration:

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

10

B450M Pro4

Chapter 2 Installation

This is a Micro ATX form factor motherboard. Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits 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 overtighten the screws! Doing so may damage the motherboard.

English

11

2.1 Installing the CPU

Unplug all power cables before installing the CPU.

1

2

English

12

B450M Pro4

3

English

13

2.2 Installing the CPU Fan and Heatsink

After 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.

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

Installing the CPU Box Cooler SR1

1

2

English

14

B450M Pro4

3

4

4-pin FAN cable

 

N1

FA

U_

 

CP

 

English

15

Installing the AM4 Box Cooler SR2

1

2

English

16

B450M Pro4

3

English

17

4

4-pin FAN cable

 

N1

FA

_

 

PU

 

C

 

5

4-pin FAN cable

RGB LED Cable

 

1

N

_FA

 

PU

 

C

 

English

 

 

1

 

 

ED

 

L

 

_

+12V

N

 

AM

 

 

_FA

 

 

D

 

*The diagram shown here are for reference only. Please refer to page 31 for the orientation of AMD Fan LED Header (AMD_FAN_LED1).

18

B450M Pro4

Installing the AM4 Box Cooler SR3

1

2

English

19

3

4

English

20

ASRock B450M Pro4 Service Manual

B450M Pro4

5

4-pin FAN cable

 

1

N

_FA

 

PU

 

C

 

6

PU_FAN1

C

USB 2.0 Header

Please note that this connector is the interface to the LED control board on the SR3, it requires the AMD utility "SR3 Settings Software" to control the LED.

*The diagram shown here are for reference only. Please refer to page 28 for the orientation of USB Header.

English

21

2.3 Installing Memory Modules (DIMM)

This motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots, and supports Dual Channel Memory Technology.

1.For dual channel configuration, you always need to install identical (the same brand, speed, size and chip-type) DDR4 DIMM pairs.

2.It is unable to activate Dual Channel Memory Technology with only one or three memory module installed.

3.It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4 slot; otherwise, this motherboard and DIMM may be damaged.

DDR4 UDIMM Maximum Frequency Support

Ryzen Series CPUs (Pinnacle Ridge):

 

UDIMM Memory Slot

 

Frequency

A1

A2

B1

B2

(Mhz)

-

SR

-

-

2667

-

DR

-

-

2400

-

SR

-

SR

2667

-

DR

-

DR

2400

SR

SR

SR

SR

2133

SR/DR

DR

SR/DR

DR

1866

English

22

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