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Core i5 2500k temps nearing 80C at full load with *no overclocking*!

Guys, I am thinking about OC'ing my i5 2500k. Currently it has no modifications whatsoever. I decided to run prime95 on "SmallFFTs" setting, and tracked the cores temperatures with PC Wizard 2010. After about 30 seconds of all 4 cores at 100% load they started surpassing 75 C, at which point I thought it better to cancel the test. I use Intel's stock fan and I leave my case open for maximum ventilation. Is this temperature supposed to happen?

Thanks!!!
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More about core 2500k temps nearing full load overclocking
  1. Best answer
    With the stock cooler ,yes. If you wanna overclock your cpu buy this http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099 is cheap and good.
  2. Hmm, cool, but that cooler looks HUGE though! I probably won't be able to close the case if I decide to, in case I buy that fan =O
  3. Are you sure the heatsink is attached firmly? That is, that the clips are actually engaged? You shouldn't be getting temps quite that high.
  4. I have the Cooler Master Hyper 212 + which is basically the same as the Evo. It works well with my Intel Core i7-2600K. One thing I would put out with is that you want to make sure that the memory that you are using is doesn't have some great big heatspreaders on it that will hit the bottom of the cooler.

    Christian Wood
    Intel Enthusiast Team
  5. Here is a trick to test to make sure that your HSF (heatsink/fan) is seated well. Reach in and grab each of the four twist clips and pull straight up. If any of them come up than the stock HSF isnt seated right. When you seat the stock HSF on the Intel® processors you do them in a cross pattern so bottom right to top left, than bottom left to top right and this will help ensure that you get the best seating of the HSF.

    Christian Wood
    Intel Enthusiast Team
  6. IntelEnthusiast said:
    Here is a trick to test to make sure that your HSF (heatsink/fan) is seated well. Reach in and grab each of the four twist clips and pull straight up. If any of them come up than the stock HSF isnt seated right. When you seat the stock HSF on the Intel® processors you do them in a cross pattern so bottom right to top left, than bottom left to top right and this will help ensure that you get the best seating of the HSF.

    Christian Wood
    Intel Enthusiast Team


    Hi Christian and thanks for your reply :) I turned off the computer and did what you described. The twist clips were quite firm and none of them moved with repeated pulls. I already expected them to be so, as it was my technician who installed the processor for me.
    Could it be perhaps that the fan's max speed isn't as fast as it should be, for some reason? I use a DZ68DB mobo with the latest BIOS and a 650 Watts power supply.
  7. I have been researching a bit and temperatures of 80~85 in the prime95 test are indeed regular for the stock cooler. Time to order a Cooler Master Hyper 212 Plus, the best available in Brazil currently, and quite cheap as well :)
  8. Best answer selected by Nantes.
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