Hey Sniper, Most boards have a sensor on them like that. My 730, 790, and I think even my x58 have that sensor 2/3 problem where it constantly reads 90-100C. It's inaccurate, don't worry. I'm quite shocked though, you're PII takes 140 (was that idle, or fl?)
Even my 950 only takes 130 watts at 3.0.
Something was terribly wrong yesterday, I ran Furmark on my 470 and I ended up popping the 100C cherry on my card. Coincidentally, I think my pump may be going too. (Why, Cabbs? WHY!?)