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I5 2500K Huge Temp increase and I have no idea why?

Hey guys,

My machine has been running solid for months. All of the sudden today, I am noticing a HUGE increase in CPU temp (up to 80 C) under normal load (i.e. running a game update). It goes back down into normal temp range at idle (around 29-32 C) when just running a web browser or file browsing.

2 things changed on my PC today, I don't know if maybe one of them is affecting it... I downloaded the new Nvidia drivers 295.73 and I also installed a DVI cable in place of my HDMI on my monitor to allow for 120 Hz refresh.

Full system specs below.

I have no clue what is going on. I had moved my case to allow to change the cable, however after I noticed the temp change, I shut down and verified I didn't somehow unseat the CPU fan. It was tight and flush, so no problems. I can also see the RPM s change on the CPU fan as well (I use AI Suite II).

Could either of the 2 above scenarios caused this issue or is there something more insidious going on here? What could cause such a drastic problem in CPU temp like this? If I remember correctly, at full load it typically would only get up to about 54 C, so why now is it spiking so high and scaring the bejeezus out of me?

Core i5 2500K OCed to 4.5 Ghz
Asus P8P67 Mobo
Corsair 8 GB Vengeance Ram
EVGA GTX 570 2560 MB
Samsung S23A950 120 Hz 3D monitor
6 answers Last reply Best Answer
More about 2500k huge temp increase idea
  1. I'd say that the pushpin has slipped a little and take the pressure off the cpu. At least if that had happened it would look like what you are describing.
  2. with what are u cooling the OCed CPU ?
    if stock Cooler then it's totally normal ! with an H100 i easily reach 90 Core temp with IBT @ 4.8Ghz
  3. Best answer
    ^SkyWalker, nobody should have temps anything like that high on a third-party heatsink, let alone an H100. I agree that the problem here is probably a slipped pin, and the OP should reapply the sink (possibly with new TC:, but it looks like you have your own problems. An H100 shouldn't go above the 60s.
  4. Thanks guys!

    It was most def just the increase to 120 Hz putting a hurting on things. I did go out and buy an H80. Now my temps don't go over 30 under load. That is insanity for a cooler. Never done hydro before, but it seems to work well.

    Thanks again!
  5. Best answer selected by Munky1985.
  6. ^kajabla , it totally depend on how much Vcore u Use to OC ur CPU , Frequency , and Room Temp ...
    IBT can make a i7 950 @ Stock , with a Stock Cooler Reach 90~95 Core temp , i've done that test on several machines

    but with Prime95 or other Test Software . my max temp is 65 ( Core ) , 45 ( Cpu )
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