I replaced my 2.6C @ 3.3/254FSB with a new 3.4E and have it @ 3.6 / 260FSB. I booted up HL2 and it plays like cr*p, and the audio before I load a game makes little snapping noises (the agp/pci bus is locked.) Most of the time it looks ok, but once I get near lights, especially bright ones it gets very choppy at the same settings as I had before w/ my old CPU and lower speeds. Tried a Steam reinstall, no luck. CoD & Doom3 sem to play the same, any ideas? Attached are my readings...I know my CPU temps suck I have a XP-90 on the way...also it doesn't seem to be throttling durring games, i check that with Throttlewatch. I Prime95's for about 5 hours w/o errors even though my temps are really bad (51I/64L) - i have an XP-90 on the way...