MSI X299 TOMAHAWK User Manual page 56

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 light of BIOS
FLASHBACK+ button starts flashing.
4. After the flashing BIOS process is 100% completed, the button light would stop
flashing and would be off simultaneously.
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BIOS Setup
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