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4670K @ 4.5Ghz @1.2V - Seriously high temps

My CPU cooler is a CM 212 EVO. I've OC'd it to 4.5Ghz and put the voltage at 1.2V. I haven't done a 24 hour stress test to see if there are any stability problems, but i did a 15 minute torture test with Prime95 to see how high the temps will go.

Idle temp: 40-41°C (which is already high)
Under load (Prime95): Keeps inconsistantly jumping around 80-90°C, which is pretty damn high.

I'm assuming i have a pretty bad chip? Any suggestions? Increase/decrease vcore?

I'm using Hwinfo to monitor the temperature.
4 answers Last reply Best Answer
More about 4670k 5ghz high temps
  1. You don't have a bad chip at all, your cooling is simply inadequate for the OC'ing you're doing. Going from 3.4GHz to 4.5GHz is a hefty Overclock. Your temperatures are spiking through the roof because the thermal output is far outweighing how much a 212 Evo can dissipate, especially in a torture test. You're definitely going to want a lot stronger cooling in order to run at stable temperatures.
  2. What are your temps while gaming, that is what matters.
    Prime 95 will consume more power and run hotter than any other application you use.
    It is a great way to stability test, but it's temps are not realistic of normal use.

    My 4770k runs p95 @65c
    And maxes out in video rendering (100% useage) at 50c

    Or you might be reaching the 212's cooling limits, it is a great cooler for the 4.2 range, but I don't think it is really meant to handle 4.5+ghz
  3. What are your temps while gaming, that is what matters.
    Prime 95 will consume more power and run hotter than any other application you use.
    It is a great way to stability test, but it's temps are not realistic of normal use.

    My 4770k runs p95 @65c
    And maxes out in video rendering (100% useage) at 50c

    Or you might be reaching the 212's cooling limits, it is a great cooler for the 4.2 range, but I don't think it is really meant to handle 4.5+ghz
  4. Best answer
    The 212 will probably be sufficient for 4.5 Ghz. Also, your cpu will always be more hot during a stresstest compared to gaming. Idle 40-41 isn't that high for idle, my Phenom X4 955 + Hyper TX3 cooler is running at 36 degrees as we speak. My chip isn't OC'ed ;) (- I am not using all the fans though).

    Try playing very CPU intensive games like Arma III and BF4 and monitor the temps with HWmonitor/Speccy and see how high it gets.

    PS: You are probably got an unlucky chip, that might be why your temps are higher in general while OC'ed compared to people with the same OC.
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