UXU,
One thing to be wary of ,, on the NF7 boards when OC'ing it is important to hold down the "insert" key at post,,
this disables something or other, not 100% sure exactly what ,, MB,, Maybe you have some insight on that??
I have the NF7-S board, and one of the things the vendor stressed to me was to hold down the insert key during post,,,
check it out!
cheers,