CPU Temp problems

[Mala]

I stress test my pc whenever i make even a minor change to it, but today i noticed something odd. After about 2 hours of prime95(4x threads) the temperature of my q6600 will jump from 55C to 100C. However Speedfan/Coretemp report all the temperatures of the individual cores as <55C, which is what the CPU was at under load before. Speedfan also says the system temperature jumps to 100C, so i'm thinking it could be the northbridge heatsink that is overheating. I have an EVGA 680i NF68 revision A1 board and i've read of some northbridge heaksink problems. Should i reseat the northbridge heatsink? Or is the problem something else?

[Mala]

Ok so i decided i would remount the heatsink on the north/south bridge, but i couldn't for the life of me figure out how to get it off. I even took my mobo out (my case doesn't have a mobo tray either, so it was annoying as shit) and i just couldn't get it.

[Grandcross]

I don't think its possible for your CPU to reach 100C as it will throttle itself way before that happens. Same with your system temps, because 100C is like 'lol your computer is fried'.

[Mala]

I don't think its possible for your CPU to reach 100C as it will throttle itself way before that happens. Same with your system temps, because 100C is like 'lol your computer is fried'.

Yeah, i'm pretty sure it was the northbridge that was going that high, and it is right next to the cpu which could cause the temperature readings to be off.

[Avanarius]

sounds about right, but jumping from 50-100c is a bit much, definitely a heatsink problem.

My northbridge on my 680i idles at 60c without fan and loads to 70c at most.

[Mala]

How can i read the northbridge temperature without physically taking a thermometer to it? None of the temperature programs i use read it. (I think im missing this somewhere <__<)