I can slide mine to 220, but the best improvement is at 210 (according to SisSandra). what gives? also, what happens if you go to high??? Does your computer just freeze and you have to reboot and no harm done?
I tried sliding my FSB up in Core Center but it didn't like it and froze on me after just a few levels up. Just had to reboot, no biggie. Not sure if Cool and Quiet interferes with trying to OC from there.
