i got my Arctic Cooling 5 rev2 today and installed it.... so i decided to start cranking my Sapphire GTO2 more than it was and i managed to get 535/605 out of it. i though ti would get more than that from the core but hey.... what can you do. its been unlocked and i had my cpu running at 1845 instead of 1800 but i got 6099..... its no an INSANE number but to have done any cpu oc'ing really i think its pretty damn good. any suggestions would be helpful 