i have a q9450 and at the time i had it overclocked to 3.8ghz. i bumped it to around 1.36-1.4v to fix the problem. when i run it stock i keep it at 1.22v, because of this chart. i'm not sure what's correct for your cpu though, just try bumping it once or twice that should do it. if not then read up or experiment further.