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!
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