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Stock 3930k temps too high? (Prime 95)

  • CPUs
Last response: in CPUs
August 9, 2012 1:17:56 PM

Hi, I've just built my first system and was hoping for a few opinions on my CPU temps.

I am running a i7 3930k with a CoolerMaster Hyper 212 EVO cooler, and decided to run a stock test with Prime95 to see what kind of temps I came up with.

After 15-20mins, my highest temp reading was 67C. All cores were running between 59-66C for most of the test. The system idles between 19-27C. Ambient temp would be around 18 or 19C.

Does this seem OK/normal? I am not looking to overclock and am just wanting to know if it's safe to run Prime95 for longer and maybe put Core Temp's Overheat Protection setting on something like 70C?

Intel lists the limit of the CPU at 66.7C. I find mixed answers on most forums, but most say anything under 70-80C is OK. What do you guys think? Any help would be awesome.

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August 9, 2012 1:19:02 PM

Those temps are fine. Right where you want them.
August 9, 2012 2:16:48 PM

Those temperatures are 100% normal. I also own that same processor. Remember that Prime95 is a worst case scenario for the processor. While it might push the temps to the mid 60s there are very few programs that will ever stress the CPU that much, so typical load temperatures will be closer to the low or mid 50s.
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August 9, 2012 2:38:57 PM

Oh, by the way, that 66.7 celcius secification from Intel is actually the T-Case temperature, not the core temperatues. In order for the T-Case to get to 66.7, the core temps would need to be 85+ celcius
August 9, 2012 3:36:39 PM

Thanks for the good news! I'll be able to breathe a little easier now :)