MSI B450-A PRO User manual

1
Quick Start
DDR4 Memory
Graphics Card
SATA Hard Disk Drive
SATA DVD Drive
Phillips Screwdriver
Chassis
Power Supply Unit
A Package of Screws
Thermal Paste
Quick Start
Thank you for purchasing the MSI®B450-A PRO motherboard. This Quick Start section
provides demonstration diagrams about how to install your computer. Some of the
installations also provide video demonstrations. Please link to the URL to watch it
with the web browser on your phone or tablet. You may have even link to the URL by
scanning the QR code
Preparing Tools and Components
AMD®AM4 CPU
CPU Fan

2Quick Start
Installing a Processor
1
2
3
6
4
5
7
8
9
https://youtu.be/Xv89nhFk1vc

3
Quick Start
1
23
Important
If you are installing the screw-type CPU heatsink, please follow the figure below to
remove the retention module first and then install the heatsink.

4Quick Start
Installing DDR4 memory
http://youtu.be/T03aDrJPyQs
DIMMB2 DIMMB2
DIMMB1
DIMMA2 DIMMA2 DIMMA2
DIMMA1
1
1
2
2
3
3

5
Quick Start
Connecting the Front Panel Header
http://youtu.be/DPELIdVNZUI
RESET SW
POWER SW
POWER LED+
POWER LED-
HDD LED
HDD LED
RESET SW
JFP1
HDD LED HDD LED -
HDD LED +
POWER LED -
POWER LED +
POWER LED
1
2 10
9
+
+
+- -- -
+
Power LED
HDD LED Reset Switch
Reserved
Power Switch
JFP1
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

6Quick Start
BAT1
Installing the Motherboard
1
2

7
Quick Start
Installing SATA Drives
http://youtu.be/RZsMpqxythc
1
23
4
5

8Quick Start
1
Installing a Graphics Card
http://youtu.be/mG0GZpr9w_A
2
3
4
5
6

9
Quick Start
Connecting Peripheral Devices
Ryzen™ with Radeon Vega
Graphics Processors

10 Quick Start
Connecting the Power Connectors
http://youtu.be/gkDYyR_83I4
ATX_PWR1 CPU_PWR1