Subbing to this club/thread. I should have a year or so ago when I modded a P5Q socket to accept a Socket 771 X5470. Have it at 4Ghz and it's been rock solid for WCG crunching, but 4c/4t just wasn't cutting it.
Onto bigger and better with an EVGA X58 and an X5670 from this thread:
https://www.techpowerup.com/forums/...920-3-7ghz-for-now.230017/page-4#post-3596695
Long story short. I had to mod the pre-Westmere motherboard by moving a tiny, tiny resistor to recognize the X5670 (that sucked, but it worked)
I can't get the chip past 3.5Ghz. I'm guessing I need to push more voltage through it. This was the highest I've gotten it so far:
I'll be messing with it the next few nights. Next plan is to drop the multi and raise the Bus Speed, and see what limit I can hit on the board itself.
Edit: What's a reasonable thermal expectation (degrees C) on these chips?