I know this is a really old thread.
I am using the latest BIOS (5001) and the board just funtions as normal.
I put in a Radeon R9 380 and the board has some trouble POSTing, but not really, there is just a slight delay as it has to try twice or something. Then always the BIOS complains about this and refuses to honour any overclock settings.
So basically I have to press F1 each and every time to boot, OR disable the errors in the BIOS, but then if I do so it still won't apply the overclock settings, apart from "N.O.S." which produces an unstable gaming experience (probably setting the HT link wrong or something).
Has anyone every experienced this trouble with the BIOS always complaining about boot failures?