i have a stock cooler and have that exact same matherboard and cpu running 3ghz with slight vcore increase. I have found above 2.7 ghz you will need to increase voltage to get it stable. 60 degrees is not that hot for that cpu. above 70 degrees is getting too hot though, and mine has never gone over 70 with the stock cooler and AS5. also dont bother ocing the ram, it wont gain you much. get the CPU OC stable before doing anything else. Was also wondering what video card you used to have and what resolution your playing at. That may also give us an idea why your not seeing the performance increase you hoped for with the gtx480. You should at least be able to turn up all details and AA without much of a performance hit with that card though.