I am new to overclocking, but I have managed to get this thing to run @ 2.2 220x10. I have tried to go higher but I get some stability issues in HL2 and Aquamark. I also tried to go to 250x10 and it locked up tight. I had to pull the battery and reset the cmos. I have the AGP @ 67, HT @ 3x , multiplier @10x, 200 FSB. I think I will leave it for awhile because it seems to run good here, but why can't I go higher? Think its the ram? BTW the BIOS is reporting temps in the low 40's with stock cooling, this is ok right?