Well, you were right KTE.... I left it to prime overnight and it didn't make it through the night. Then it started showing instability again today....

So I did bump the v's up one notch on the Vcore and NB, and it seems to be OK again... The wide performance swings you've seen are pretty odd, hope that doesn't happen to me!

Do you think it's related to the Mobo or the processor itself?

As for upping the V's I had them both cranked while testing and didn't see any real benefit from it as far as improving my OC...

Of course.... I could have gone a little too far the other way