MSI B450 TOMAHAWK User Manual

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BIOS Setup

Updating BIOS with BIOS FLASHBACK+

Before updating:

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

website and rename the BIOS file to MSI.ROM. And then, save the MSI.ROM file to the

root of USB flash drive.

Important

Only the FAT32 format USB flash drive supports updating BIOS by BIOS FLASHBACK+.

1. Connect power supply to CPU_PWR1 and ATX_PWR1. (No other components are

necessary but power supply.)

2. Plug the USB flash drive that contains the MSI.ROM file into the BIOS

FLASHBACK+ port on rear I/O panel.

3. Press the BIOS FLASHBACK+ button to flash BIOS, and the LED next to

FLASHBACK+ button starts flashing.

4. After the flashing BIOS process is 100% completed, the LED would be off

simultaneously.

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