Originally Posted by mcandmar
Honestly this chip dosent seem to run hot at all IMO. I'm running 125x37 for 4.6ghz and it will hit ~70c under full load with Prime95 or IBT running. Thats using a Noctua cooler with a single fan, with a H80 it should run much cooler. Key i found is power setup, i can run mine at 1.288v with optimal settings for the VRM, that combined with Intel Speed Step enabled gives me 1.5ghz at idle and ~36c. When gaming its rare to see 50% cpu usage so it stays below 60c, overall my old AM2 setup ran way hotter. . For my chip 4.7 or 4.8 does require a jump in voltage to 1.36-1.40v which makes more heat to the point i didnt bother trying for 5ghz, 4.6ghz was the sweet spot for me. Only thing to watch for is the VRM temps, my board has a temp probe for them and they run on average 5-10c more than the cpu, so if your water cooling the chip make sure you have some air flow over that area.
Thanks for the input, I was actually really curious about temps/cooling and how much is required.
A 700 - 900 mhz over-clock is more than enough for me. I plan on getting an AsRock Extreme6 so I shouldn't have much of a problem with VRM cooling (12 + 2 phase with heat syncs and I will have a fan blowing directly on them).
The only thing I'm not sure about is how much my RAM might limit my overclock, getting a high ram overclock doesn't concern me as much as having to lower my stock ram frequency to get a stable overclock.
EDIT: oh and I did some googling
and it seems the max multiplier is 43 and not 42, at least according to that thread.Edited by james_ant - 3/18/12 at 12:00pm