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

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April 19, 2014 10:29:34 PM

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.

More about : 4670k 5ghz high temps

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April 19, 2014 10:59:15 PM

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.
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April 19, 2014 11:03:10 PM

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
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April 19, 2014 11:04:20 PM

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
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a b à CPUs
April 19, 2014 11:53:35 PM

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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