2xxx Bioses provide Fast boot option to speed up boot times especially at resets.
You can adjust post delay time to be longer (if for example you find it hard to enter BIOS)
You can disable Fast boot to make it post not as fast during resets
ONLY IF 2003 BIOS or NEWER
To Flash back to 1xxx.ROM, Rename 1xxx.rom to ERALL.ROM and Use USB Flashback