I have tried to solve this overheating issue with my pc for over 4 months now. I've posted many threads and tried all I can think of. As soon as I got my new computer I used the OEM fan and in my bios the Hardware Monitor aid it was running at 110-120F. I installed Windows 7 x64 Ultimate, with Speed Stepping on it would sit at 110F @ idle and it I ran any applications it would jump to 130+ and sometimes 140 where I just shut it down. After a few hours of tinkering I went to Fry's and bought the ONLY LGA1156 cooler and it was some Dynatron 120mm heatpipe cooler that BARELY fits in my wide case. That got it down to like 95F in BIOS, 90-100F idle in Win7, and still 130-140F in . I turned Speed Stepping off and in windows I can get it to about 80-85F idle and usually below 130F in . It still will surge to like 140F and set off my alarm @ 135F in , when I run an app like Firefox it jumps from like 90F to 110-115F and stays until idle again. Now I am just thinking that there is an issue with either the processor itself OR the motherboard's ZIF socket/Mounting hardware. I have tried everything... Extra Fans, new cooler, changing BIOS settings etc etc. Any suggestions would be greatly appreciated. I bought this stuff from Newegg a few days b4 thanksgiving last year, maybe I can RMA it to Asus and Intel? I'll post some pics and a vid a little later. Core i5 750 Asus P7P55D-LE Dynatron Genius 120mm CPU cooler Dynatron Corporation - the leading manufacturer of CPU cooling products. OCZ DDR3 1333MHZ XFX GeForce GTX 260
Those temps seem to be just a bit out of the ordinary. I have the exact same CPU with the Intel stock cooler and it runs around 32 idle and like 50 under load or something (but I have two case fans which help cooling the overall air inside the case). The Core i5,i7's are known to be hotter that they 'should'. Maybe you didn't seat the cooler properly or there's a problem with the thermo paste. It's always just a few milimeters. But this isn't killing your machine, I would say.
I agree that it sounds like the CPU heatsink might not be seated properly. What you need to do is remove the cooler, clean it and the CPUs heatspreader with isopropyl alcohol and let it dry (which won't take long). Next add a tiny amount of thermal paste, and this is just enough to barely cover the heatspreader surface. The point of the paste is to fill in any micro gaps on the heatspreader and/or cooler mating surface. If you glob it on, it will act as an insulator for the heat...not what you want.
