Prime95 sucks for FX chips. You will mostly get errors regardless. Prime95 needs to update there software to include FX compatability. Many people including me are getting 4.70GHz with 1.4v MAX and 4.40GHz with NO Increase in Voltage. The OP should OC to 4.40GHz and leave everything on Auto, if he succeeds, he could have a good batch. I don't buy this notion about jacking up the Voltage then OCing. You should attempt the OC then up the Voltage if required. How do I know? I was running 4.80GHz with/ 1.385v Rock Stable. But I favored the higher Bus Speed and lowered the CPU speed 100MHz less & upped the voltage to 1.4v. I guess the bus speed requires more voltage for stability.