I have a similar problem, but it's actually with TCCD. I'll be fine, 3d stable, OCCT / SuperPi stable for years, but then every once in a while the mobo decides to just not boot. It will hit windows logo, then reboot :repeat:

Even returning it to all stock [load optimized], it still does it. I don't quiet know how to fix it yet, because sometimes it just fixes itself, and other times it loads up after I choose to boot with "last known working settings".

Arg, damn tempermental DFI boards.