Increase the voltage, maybe your proc just need a little bit juice to be stable 4-cores.

This post has been edited by ketapang: Oct 20 2012, 08:59 AM

Its been a long time since i oc amd system so im not really remember the safe voltage for this proc. If your using 450w true power psu it should handle both gpu and your oc without problem. You might wan to look for amd unlocking guide.