Wow thats incredible! My 1.4 will pull 1650, but my memory holds it back.... I have some mucho-mushkin on the way to solve that dilemma! How warm does that 1G get at 1.5? Like I said, mine will not hold 1.7, but seems to be really cozy at 1.65G (cept for all the freaking memory probs) it runs 1.65 at 102-104 F all day long..... BTW anyone wondering about the highest heat on these things, my CPU fan crapped out the other day, and this thing ran for about 16 hours or so (I was of course away) with SETI going full blast at 138F!!! I just about s*** a kitten when I came home and looked at my temp!!! I do luckily have a 120mm intake fan positioned just "above" the CPU fan, and I assume thats what kept it alive.... nevertheless, I worry not about temps anymore.... LOL Later all! Crunch on!