BIOS Flashback helps you to update to new or old motherboard UEFI BIOS versions even without a CPU or DRAM installed. This is used in conjunction with a USB drive and the flashback USB port on you rear I/O panel.

Is it good to flash your BIOS?

In general, you shouldn’t need to update your BIOS that often. Installing (or “flashing”) a new BIOS is more dangerous than updating a simple Windows program, and if something goes wrong during the process, you could end up bricking your computer.

How do I know if BIOS Flashback worked?

7. Press the BIOS FlashBack™ button for three seconds until the FlashBack LED blinks three times, indicating that the BIOS FlashBack™ function is enabled.