I upped the voltage to get it to 3.8ghz. It is prime95 stable, but prime95 won't show the throttling either. I ran other benchmarks that seemed unusualy low as well, so thats why I started to expect the throttling. The only clue I had that it was going on at all was the benchmark scores, as it didn't slow anything down, including half life 2, enough for me to notice the differance. In any case, with an XP-120 and artic silver 5, I am definatly not happy with the temps. The throttling kicks in when the temp hits 70c, and stops as soon as it drops below 70c. I tried disabling the throttling in my BIOS, but it does it anyway.