ASROCK B450M Pro4 User Manual

Version 1.0
Published June 2018
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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”
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ASROCK B450M Pro4 Specifications

General

ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR4-SDRAM
Maximum internal memory	128 GB
Supported memory clock speeds	2133, 2400, 2667, 2933, 3200 MHz
Supported memory clock speed (max)	3200 MHz
Supported memory module capacities	4GB, 8GB, 16GB, 32GB
Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD Athlon, AMD Ryzen 3, AMD Ryzen 3 2nd Gen, AMD Ryzen 3 3rd Gen, AMD Ryzen 5, AMD Ryzen 5 2nd Gen, AMD Ryzen 5 3rd Gen, AMD Ryzen 7, AMD Ryzen 7 2nd Gen, AMD Ryzen 7 3rd Gen, AMD Ryzen 9 3rd Gen
Maximum number of SMP processors	1
USB 2.0 connectors	2
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Wi-Fi	No
LAN controller	Realtek RTL8111H
Ethernet interface type	Gigabit Ethernet
Audio chip	Realtek ALC892
Certification	FCC, CE, ErP/EuP
Component for	PC
Power source type	ATX
Motherboard chipset	AMD B450
PC health monitoring	CPU, FAN, Temperature, Voltage, Water cooling
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Windows operating systems supported	Windows 10 x64, Windows 11 x64
DirectX version	12.0
Maximum resolution	4096 x 2160 pixels
Parallel processing technology support	CrossFireX, Quad-GPU CrossFireX
BIOS type	UEFI AMI
ACPI version	5.1
BIOS memory size	128 Mbit
System Management BIOS (SMBIOS) version	2.3
Cables included	SATA
Bundled software	ASRock A-Tuning, ASRock Polychrome RGB, ASRock XFast LAN, ASRock Full HD UEFI, ASRock Instant Flash, ASRock Easy RAID Installer
RAID levels	0, 1, 10
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
Harmonized System (HS) code	84733020

Weight and Dimensions

Width	244 mm

Summary

System Overview

Motherboard Layout

Diagram and explanation of the motherboard's physical layout and component placement.

I/O Panel Overview

Details the rear panel input/output ports and their functions.

Chapter 1 Introduction

Package Contents

Lists the items included with the motherboard package.

Specifications

Details the technical specifications of the motherboard, including CPU, memory, chipset, and expansion slots.

Chapter 2 Installation

Pre-installation Precautions

Essential safety guidelines and precautions to follow before installing components.

Installing the CPU

Step-by-step instructions for correctly installing the CPU onto the motherboard socket.

Installing the CPU Fan and Heatsink

Guide on how to install the CPU cooler and heatsink for proper thermal dissipation.

Installing Memory Modules (DIMM)

Instructions on how to properly install DDR4 memory modules into the DIMM slots.

Expansion Slots (PCI Express Slots)

Information on the types and configurations of PCI Express slots available on the motherboard.

Jumpers Setup

Explains the function and setup of jumpers, particularly the Clear CMOS jumper.

Onboard Headers and Connectors

Details the various onboard headers and connectors for system panel, USB, audio, and LEDs.

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

Step-by-step guide for installing an M.2 SSD in the M2_1 slot.

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

Step-by-step guide for installing an M.2 SSD in the M2_2 slot.

ASRock Polychrome RGB

Instructions on using the ASRock Polychrome RGB utility for lighting customization.

Compliance and Declarations

FCC Declaration of Conformity

Statement confirming the product's compliance with FCC regulations.

EU Declaration of Conformity

Statement confirming the product's compliance with EU directives and standards.