MSI B450M-A PRO MAX AMD Micro ATX AM4 Motherboard Mode d'emploi

1

󷸺󳜼 Contents

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.

2



The components included in this package are prone to damage from electrostatic

discharge (ESD). Please adhere to the following instructions to ensure successful

computer assembly.

Ensure that all components are securely connected. Loose connections may cause

the computer to not recognize a component or fail to start.

Hold the motherboard by the edges to avoid touching sensitive components.

It is recommended to wear an electrostatic discharge (ESD) wrist strap when

handling the motherboard to prevent electrostatic damage. If an ESD wrist strap is

not available, discharge yourself of static electricity by touching another metal object

before handling the motherboard.

Store the motherboard in an electrostatic shielding container or on an anti-static

pad whenever the motherboard is not installed.

Before turning on the computer, ensure that there are no loose screws or metal

components on the motherboard or anywhere within the computer case.

Do not boot the computer before installation is completed. This could cause

permanent damage to the components as well as injury to the user.

If you need help during any installation step, please consult a certified computer

technician.

Always turn off the power supply and unplug the power cord from the power outlet

before installing or removing any computer component.

Keep this user guide for future reference.

Keep this motherboard away from humidity.

Make sure that your electrical outlet provides the same voltage as is indicated on

the PSU, before connecting the PSU to the electrical outlet.

Place the power cord such a way that people can not step on it. Do not place

anything over the power cord.

All cautions and warnings on the motherboard should be noted.

If any of the following situations arises, get the motherboard checked by service

personnel:

Liquid has penetrated into the computer.

The motherboard has been exposed to moisture.

The motherboard does not work well or you can not get it work according to

user guide.

The motherboard has been dropped and damaged.

The motherboard has obvious sign of breakage.

Do not leave this motherboard in an environment above 60°C (140°F), it may

damage the motherboard.

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 





Supports 1st, 2nd and 3rd Gen AMD® Ryzen™, Ryzen™ with

Radeon™ Vega Graphics, 2nd Gen AMD® Ryzen™ with Radeon™

Graphics, Athlon™ with Radeon™ Vega Graphics, A-series and

Athlon™ X4 Desktop Processors for Socket AM4

 AMD® A320 chipset (A320M-A PRO MAX)

AMD® B450 chipset (B450M-A PRO MAX)



2x DDR4 memory slots, support up to 32GB*

Supports 1866/ 2133/ 2400/ 2667Mhz (by JEDEC)

Supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz (by

A-XMP OC MODE)

Dual channel memory architecture

Supports ECC UDIMM memory (non-ECC mode)

Support non-ECC UDIMM memory

* Please refer www.msi.com for more information on

compatible memory.



1x PCIe 3.0 x16 slot

Supports x16 speed

1st, 2nd and 3rd Gen AMD RyzenTM

Supports x8 speed

Ryzen™ with Radeon™ Vega Graphics

2nd Gen AMD Ryzen™ with Radeon™ Graphics

A-series

AthlonTM X4

Supports x4 speed

AMD® Athlon™ with Radeon™ Vega Graphics

1x PCIe 2.0 x1 slot





1x DVI-D port, supports a maximum resolution of

1920x1200 @60Hz*

1x HDMI™ 1.4 port, supports a maximum resolution of

4096x2160 @24Hz*

* Only support when using the processor with Graphics

* Maximum shared memory of 2048 MB

Continued on next page

4

Continued from previous page



AMD® A320/ B450 Chipset

4x SATA 6Gb/s ports

Supports RAID 0, RAID1 and RAID 10

1x M.2 slot (Key M)

Supports PCIe 3.0 x4 and SATA 6Gb/s

1st, 2nd and 3rd Gen AMD RyzenTM

Ryzen™ with Radeon™ Vega Graphics

2nd Gen AMD Ryzen™ with Radeon™ Graphics

Supports PCIe 3.0 x2 and SATA 6Gb/s

AMD® Athlon™ with Radeon™ Vega Graphics

A-series

AthlonTM X4

Supports 2242/ 2280/ 22110 storage devices

 Realtek® ALC892 Codec

7.1-Channel High Definition Audio

LAN 1x Realtek® 8111H Gigabit LAN controller



6x USB 3.2 Gen1 (SuperSpeed USB) ports (4 ports on

the back panel, 2 ports available through the internal USB

connector)

6x USB 2.0 (High-speed USB) ports (2 ports on the back

panel, 4 ports available through the internal USB connectors)

 NUVOTON NCT5565 Controller Chip





CPU/System temperature detection

CPU/System fan speed detection

CPU/System fan speed control

 m-ATX Form Factor

9.3 in. x 7.9 in. (23.6 cm x 20.0 cm)



1x 256 Mb flash

UEFI AMI BIOS

ACPI 6.1, SM BIOS 2.8

Multi-language

Continued on next page

5

 

Continued from previous page





1x PS/2 mouse port

1x PS/2 keyboard port

1x DVI-D port

1x HDMI™ port

4x USB 3.2 Gen1 Type-A ports

1x LAN (RJ45) port

2x USB 2.0 Type-A ports

3x audio jacks





1x 24-pin ATX main power connector

1x 4-pin ATX 12V power connector

4x SATA 6Gb/s connectors

2x USB 2.0 connectors (supports additional 4 USB 2.0 ports)

1x USB 3.2 Gen1 connector (supports additional 2 USB 3.2

Gen1 ports)

1x 4-pin CPU fan connector

1x 4-pin system fan connector

1x Front panel audio connector

2x Front panel connectors

1x TPM module connector

1x Chassis Intrusion connector

1x Serial port connector

1x Clear CMOS jumper



Drivers

APP MANAGER

SUPER CHARGER

COMMAND CENTER

LIVE UPDATE 6

SMART TOOL

X-BOOST

Norton™ Security

Google Chrome™,Google Toolbar, Google Drive

CPU-Z MSI GAMING

6



Please check the contents of your motherboard package. It should contain:

Motherboard

Driver DVD

Quick Installation Guide

I/O Shielding

SATA 6G Cable x2

Case Badge

Product registration card

M.2 Screw x1





If any of the above items are damaged or missing, please contact your retailer.

7

 





 

Off No link

Yellow Linked

Blinking Data activity



 

Off 10 Mbps connection

Green 100 Mbps connection

Orange 1 Gbps connection





To configure 7.1-channel audio, you have to connect front audio I/O module to JAUD1

connector and follow the below steps.

 Click on the  to open the dialog

below.

 Select .

 Plug your speakers to audio jacks on rear and front I/O panel. When you plug into

a device at an audio jack, a dialogue window will pop up asking you which device

is current connected.

PS/2 Mouse LAN

USB 3.2 Gen1

USB 2.0

PS/2 Keyboard DVI-D

Line-in

Line-out

Mic in

8

BAT1

CPU_FAN1

CPU Socket

SYS_FAN1

PCI_E2

JAUD1

JCOM1

PCI_E1

M2_1

DIMMA1

DIMMB1

JBAT1

JFP2

JFP1

SATA2

ATX_PWR1

CPU_PWR1

SATA3

SATA4

JUSB1 JUSB3

JUSB2

JTPM1

SATA1

JCI1



9

 



Please install the CPU into the CPU socket as shown below.









BIOS to default values due to the AM4 processor’s architecture.



Always unplug the power cord from the power outlet before installing or removing

the CPU.



When installing a CPU, always remember to install a CPU heatsink. A CPU heatsink

is necessary to prevent overheating and maintain system stability.





your system.



Overheating can seriously damage the CPU and motherboard. Always make sure

the cooling fans work properly to protect the CPU from overheating. Be sure to apply

an even layer of thermal paste (or thermal tape) between the CPU and the heatsink to

enhance heat dissipation.



If you purchased a separate CPU and heatsink/ cooler, Please refer to the docu-

mentation in the heatsink/ cooler package for more details about installation.

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7

8

2

10 



Please install the memory module into the DIMM slot as shown below.











Due to chipset resource usage, the available capacity of memory will be a little less

than the amount of installed.



-

gested to protect the processor.



󼶮

of memory modules may operate lower than the marked value under the default

state. Please refer www.msi.com for more information on compatible memory.









󼶫

unplug the power supply power cable from the power outlet. Read the expansion

card’s documentation to check for any necessary additional hardware or software

changes.



If you install a large and heavy graphics card, you need to use a tool such as MSI

Gaming Series Graphics Card Bolster to support its weight to prevent deformation

of the slot.

Processors

Slots

1st, 2nd

and 3rd

Gen AMD

RyzenTM

Ryzen™ with Radeon™ Vega

Graphics,

2nd Gen AMD Ryzen™ with

Radeon™ Graphics,

A-series,

AthlonTM X4

Athlon™ with

Radeon™

Vega Graphics

PCI_E1 PCIe 3.0 x16 PCIe 3.0 x8 PCIe 3.0 x4

PCI_E2 PCIe 2.0 x1 PCIe 2.0 x1 PCIe 2.0 x1

1

12

3

2

11

 



These connectors connect to the switches and LEDs on the front panel.

1

2 10

9

+

+- --

-

+

Power LED

HDD LED Reset Switch

Reserved

Power Switch 1 HDD LED + 2 Power LED +

3 HDD LED - 4 Power LED -

5 Reset Switch 6 Power Switch

7 Reset Switch 8 Power Switch

9 Reserved 10 No Pin

JFP2 1

+

+-

-

Speaker

Buzzer 1 Speaker - 2 Buzzer +

3 Buzzer - 4 Speaker +

HDD LED

RESET SW

HDD LED HDD LED -

HDD LED +

POWER LED -

POWER LED +

POWER LED

JFP1

12 



Please install the M.2 solid-state drive (SSD) into the M.2 slot as shown below.

1

2

3

4

5

30°



These connectors are SATA 6Gb/s interface ports. Each connector can connect to one

SATA device.

SATA1

SATA2 SATA3

SATA4







Please do not fold the SATA cable at a 90-degree angle. Data loss may result

during transmission otherwise.



SATA cables have identical plugs on either sides of the cable. However, it is



saving purposes.

13

 



These connectors allow you to connect an ATX power supply.





Make sure that all the power cables are securely connected to a proper ATX power

supply to ensure stable operation of the motherboard.

24

131

12

ATX_PWR1

1 +3.3V 13 +3.3V

2 +3.3V 14 -12V

3 Ground 15 Ground

4 +5V 16 PS-ON#

5 Ground 17 Ground

6 +5V 18 Ground

7 Ground 19 Ground

8 PWR OK 20 Res

9 5VSB 21 +5V

10 +12V 22 +5V

11 +12V 23 +5V

12 +3.3V 24 Ground

3

2 1

4CPU_PWR1

1 Ground 3 +12V

2 Ground 4 +12V

14 



This connector allows you to connect USB 3.2 Gen1 ports on the front panel.

1 10

1120

1 Power 11 USB2.0+

2 USB3_RX_DN 12 USB2.0-

3 USB3_RX_DP 13 Ground

4 Ground 14 USB3_TX_C_DP

5 USB3_TX_C_DN 15 USB3_TX_C_DN

6 USB3_TX_C_DP 16 Ground

7 Ground 17 USB3_RX_DP

8 USB2.0- 18 USB3_RX_DN

9 USB2.0+ 19 Power

10 NC 20 No Pin





Note that the Power and Ground pins must be connected correctly to avoid possible

damage.



These connectors allow you to connect USB 2.0 ports on the front panel.







Note that the VCC and Ground pins must be connected correctly to avoid possible

damage.



In order to recharge your iPad,iPhone and iPod through USB ports, please install

MSI® SUPER CHARGER utility.

1

2 10

9

1 VCC 2 VCC

3 USB0- 4 USB1-

5 USB0+ 6 USB1+

7 Ground 8 Ground

9 No Pin 10 NC

15

 



PWM Mode fan connectors provide constant 12V output and adjust fan speed with

speed control signal. When you plug a 3-pin (Non-PWM) fan to a fan connector in

PWM mode, the fan speed will always maintain at 100%, which might create a lot of

noise.



You can adjust fan speed in .

There are gradient points of the fan speed that allow you to

adjust fan speed in relation to CPU temperature.





1 Ground 2 +12V

3 Sense 4 Speed Control Signal

1

SYS_FAN1

1

CPU_FAN1

16 



This connector is for TPM (Trusted Platform Module). Please refer to the TPM

security platform manual for more details and usages.

1

2 14

13

1 LPC Clock 2 3V Standby power

3 LPC Reset 4 3.3V Power

5 LPC address & data pin0 6 Serial IRQ

7 LPC address & data pin1 8 5V Power

9 LPC address & data pin2 10 No Pin

11 LPC address & data pin3 12 Ground

13 LPC Frame 14 Ground



This connector allows you to connect the chassis intrusion switch cable.

Normal

(default) Trigger the chassis

intrusion event



 Connect the  connector to the chassis intrusion switch/ sensor on the

chassis.

 Close the chassis cover.

 Go to .

 Set  to .

 Press F10 to save and exit and then press the  key to select .

 Once the chassis cover is opened again, a warning message will be displayed on

screen when the computer is turned on.



 Go to .

 Set  to Reset.

 Press to save and exit and then press the  key to select .

17

 



This connector allow you to connect audio jacks on the front panel.

1

2 10

9

1 MIC L 2 Ground

3 MIC R 4 NC

5 Head Phone R 6 MIC Detection

7 SENSE_SEND 8 No Pin

9 Head Phone L 10 Head Phone Detection



This connector allows you to connect the optional serial port with bracket.

1

2 10

9

1 DCD 2 SIN

3 SOUT 4 DTR

5 Ground 6 DSR

7 RTS 8 CTS

9 RI 10 No Pin



There is CMOS memory onboard that is external powered from a battery located on

the motherboard to save system configuration data. If you want to clear the system

configuration, set the jumpers to clear the CMOS memory.

Keep Data

(default) Clear CMOS/ Reset

BIOS



 Power off the computer and unplug the power cord.

 Use a jumper cap to short JBAT1 for about 5-10 seconds.

 Remove the jumper cap from JBAT1.

 Plug the power cord and power on the computer.

18 



The default settings offer the optimal performance for system stability in normal

conditions. You should  to avoid possible system

damage or failure booting unless you are familiar with BIOS.







BIOS items are continuous update for better system performance. Therefore, the

󼶫

reference only. You could also refer to the HELP information panel for BIOS item

description.



The BIOS items will vary with the processor.



Press  key, when the

 message appears on the screen during the boot process.



F1: General Help

F2: Add/ Remove a favorite item

F3: Enter Favorites menu

F4: Enter CPU Specifications menu

F5: Enter Memory-Z menu

F6: Load optimized defaults

F7: Switch between Advanced mode and EZ mode

F8: Load Overclocking Profile

F9: Save Overclocking Profile

F10: Save Change and Reset*

F12: Take a screenshot and save it to USB flash drive (FAT/ FAT32 format only).

* When you press F10, a confirmation window appears and it provides the

modification information. Select between Yes or No to confirm your choice.

19

 



You might need to restore the default BIOS setting to solve certain problems. There

are several ways to reset BIOS:

Go to BIOS and press F6 to load optimized defaults.

Short the  jumper on the motherboard.





Please refer to the jumper section for resetting BIOS.





Before updating:

Please download the latest BIOS file that matches your motherboard model from MSI

website. And then save the BIOS file into the USB flash drive.

Updating BIOS:

 Press Del key to enter the BIOS Setup during POST.

 Insert the USB flash drive that contains the update file into the computer.

 Select the M-FLASH tab and click on  to reboot the system and enter the flash

mode.

 Select a BIOS file to perform the BIOS update process.

 After the flashing process is 100% completed, the system will reboot

automatically.



Before updating:

Make sure the LAN driver is already installed and the Internet connection is set

properly.

Updating BIOS:

 Install and launch MSI LIVE UPDATE 6.

 Select .

 Click on Scan button.

 Click on  icon to download and install the latest BIOS file.

 Click Next and choose . And then click Next and  to start

updating BIOS.

 After the flashing process is 100% completed, the system will restart

automatically.

20 



Please download and update the latest utilities and drivers at www.msi.com

®

 Power on the computer.

 Insert the Windows® 10 installation disc/USB into your computer.

 Press the  button on the computer case.

 Press F11 key during the computer POST (Power-On Self Test) to get into Boot

Menu.

 Select the Windows® 10 installation disc/USB from the Boot Menu.

 Press any key when screen shows 

message.

 Follow the instructions on the screen to install Windows® 10.



 Start up your computer in Windows® 10.

 Insert MSI® Driver Disc into your optical drive.

 Click the pop-up notification,

then select  to open the installer. If you turn off the AutoPlay

feature from the Windows Control Panel, you can still manually execute the

 from the root path of the MSI Driver Disc.

 The installer will find and list all necessary drivers in the  tab.

 Click the button in the lower-right corner of the window.

 The drivers installation will then be in progress, after it has finished it will prompt

you to restart.

 Click  button to finish.

 Restart your computer.



Before you install utilities, you must complete drivers installation.

 Open the installer as described above.

 Click the  tab.

 Select the utilities you want to install.

 Click the button in the lower-right corner of the window.

 The utilities installation will then be in progress, after it has finished it will

prompt you to restart.

 Click  button to finish.

 Restart your computer.

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MSI B450M-A PRO MAX AMD Micro ATX AM4 Motherboard Mode d'emploi

MSI B450M-A PRO MAX AMD Micro ATX AM4 Motherboard Mode d'emploi

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