I5 3570k Temps Rise and Fall Quickly

I just put together my first computer. My case is on the way back to me because it was damaged and I had to RMA. Meanwhile, I decided to put my parts together and test it out. Everything went together fine, but when I run intel burn test or Prime95, the core temps rise from about 28C to 70C-80C in seconds. I tried reinstalling the heatsink and everything and am getting similar results. I'm not sure what is wrong.

i5 3570k
Gigabyte z77x-UD5H
Hyper 212 EVO
G-Skill Ripjaws DDR3-2400
NZXT Hale90 750w

My ambient temps would be around 24C.
I just have it running at 3.5GHz.
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More about 3570k temps rise fall quickly
  1. Well, after reinstalling the heatsink again, I realized that on of the blots on the mounting bracket wasn't as tight as the others. I tightened it up and now it's running fine.
  2. Alright, remember Ivybridge runs much hotter when overclocked than sandybridge!
  3. did you apply thermal compound?
  4. Actually, while not as bad, I am still having the same problem. My temps instantly shoot to 68C-77C from idle temps when I run prime95. I guess it was actually running at 3.95GHz, does this sound right or ismy heatsink/thermal grease not properly installed again?
  5. xtreme5 said:
    did you apply thermal compound?


    Yes, a lentil sized amount of the compound that is included with the Hyper 212 Evo.
  6. I turned turbo boost off and my load temps at 3.5 GHz are around 65C.
  7. Ivybridge runs much hotter when overclocked.
  8. amuffin said:
    Ivybridge runs much hotter when overclocked.


    But when it isn't overclocked, my temps shoot up to 70C.
  9. imackintosh said:
    But when it isn't overclocked, my temps shoot up to 70C.

    Give it some time for the paste to burn in!
    If you need help to remove the thermal paste, you can read this guide
  10. Use Aida 64 for testing the Ivy Bridge. Prime can actually damage the Ivy, don't use it, it's not optimized for Ivy's architecture. Then see what your reading are using Aida 64. If it is still hot then you have a problem, but don't be surprised to see it running a little warm. It does shoot up rather fast, but I'm running mine under water, and at 4.4 Ghz I haven't even seen 80 during a stress test.
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