Been following this thread closely but haven't had time to post many results yet.. I can get mine stable at 4400mhz but it req's 0.1v increase. I can't seem to get anything stable with a nb above 2400mhz regardless of volts so I have left it there. Fusion, I see your nb is the same, are you having issues above 2400? I have a shit load of Rad area on my case but when I stress all 8 cores the temp goes from low 20's to 60 in a heartbeat. I don't think any amount of wc is going to change that, the chip just can't dissipate the heat quick enough. Lol On another note I cannot find a way to disable cores on my 990fx. I have enabled core unlock and restarted etc. but there are no options for disabling that I can see. Anyone have any ideas.