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Contents

2

3

6

 7

LAN Port LED Status Table ........................................................................................7

8

CPU Socket .................................................................................................................9

DIMM Slots................................................................................................................10

PCI_E1~2: PCIe Expansion Slots ..............................................................................10

JFP1, JFP2: Front Panel Connectors .......................................................................11

SATA1~4: SATA 6Gb/s Connectors ...........................................................................12

M2_1: M.2 Slot (Key M) .............................................................................................12

ATX_PWR1, CPU_PWR1: Power Connectors ...........................................................13

JUSB1~2: USB 2.0 Connectors .................................................................................14

JUSB3: USB 3.2 Gen1 Connector .............................................................................14

CPU_FAN1, SYS_FAN1: Fan Connectors .................................................................15

JTPM1: TPM Module Connector ...............................................................................16

JCI1: Chassis Intrusion Connector ...........................................................................16

JAUD1: Front Audio Connector ................................................................................17

JCOM1: Serial Port Connector .................................................................................17

JBAT1: Clear CMOS (Reset BIOS) Jumper ...............................................................17

18

Entering BIOS Setup .................................................................................................18

Resetting BIOS ..........................................................................................................19

Updating BIOS...........................................................................................................19

20

Installing Windows

10..............................................................................................20

Installing Drivers ......................................................................................................20

Installing Utilities .....................................................................................................20

Thank you for purchasing the MSI



motherboard. This User Guide gives

information about board layout, component overview, BIOS

setup and software installation.

Questions and Answers:

Need help?

Do you have a question about the MSI B450M-A PRO MAX and is the answer not in the manual?

MSI B450M-A PRO MAX Specifications

General

Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD Athlon, AMD Ryzen, 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
Audio chip	Realtek ALC892
Cooling type	Passive
Component for	-
Power source type	ATX
Motherboard chipset	AMD B450
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Number of mounting holes	6
Windows operating systems supported	Windows 10 x64, Windows 7 x64
ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	2
Supported memory types	DDR4-SDRAM
Maximum internal memory	32 GB
Supported memory clock speeds	1866, 2133, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3733, 3866, 4000, 4133 MHz
Supported memory module capacities	4GB, 8GB, 16GB
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	SATA III
DirectX version	12.0
Maximum resolution	4096 x 2160 pixels
Maximum graphics card memory	2048 MB
Parallel processing technology support	Not supported
Number of SATA III connectors	4
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
USB connector type	USB Type-A
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 8111H
Ethernet interface type	Gigabit Ethernet
Cables included	SATA
HDD size	2.5/3.5 \
Harmonized System (HS) code	84733020