Quote Originally Posted by sulu17 View Post
HI

I am having same problem. I flashed to 504 on my p5e and I can not flash to 402 bios. Afudos tells me the bios is too old. I also tried using older Afudos 2.11 and this also tell me the checksum is bad.

Anybody know how I can go back to the older BIOS? 405 sets vcore at 2.6V!
Download AsusUpdate 6.10.02, install it, in the options menu check the ability to downgrade the BIOS, chose to flash from a file and continue untill your favorite BIOS is correctly flashed.

If you have Vista32, install launching "setup.exe"; Vista64 is probably not supported.