Aside from that, you could ditch all the RAM timings to say 10 and see if you can get stable that way.
Your voltage is massive for that clock, that could be causing instability on it's own, have you tried it at a lower voltage? Say a 1.3v?
All of this could come to naught of course, it might be the RAM just can't cope (I'm guessing 1333) I was recommended to use 2000 RAM for anything above 4GHz realistically.
Edited by Crabid - 2/22/11 at 5:04pm