High CPU Temperatures

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benswalwell101

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Aug 26, 2017
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Hello, I have begun to notice that my CPU temperatures have been rather high lately. I have a I5 4690K. At idle it hovers around 40C, under load it can reach around 90C. I have overclocked it to 4.20 GHz and compairng it to others they have good temperatures in comparison to my 90C. After running a prime95 test my CPU reached 100C which I quickly shut off. I currently have a AIO water cooler being the Corsair H55 which at this point is 3 years old. I also have push pull configuration on the radiator as well has 4 other fans in my system. I was wondering if these high temperatures could be due to the H55 being old and due to be replaced. I'm not sure what my next step should be and would appreciate extra opinions.
Thanks
 
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Blow out your radiator to get any of the dust out, although I'm pretty certain that's not the issue.

Intel's thermal solution on their CPUs aren't always applied in the same manner, and some CPUs will have wildly different temperature variations based on how Intel applied the thermal paste in between the CPU die and IHS. It's possible that you got the unfortunate draw and got a CPU that may not have had full coverage of the die. There isn't a 100% safe way to delid your CPU and apply an amount of thermal paste if this is actually the issue.

If you can adjust the fan speed on your radiator, set it to max and that should help alleviate some of the temperature problems. It couldn't hurt to check the thermal paste on your CPU to see if...
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JalYt_Justin

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Jun 12, 2017
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Blow out your radiator to get any of the dust out, although I'm pretty certain that's not the issue.

Intel's thermal solution on their CPUs aren't always applied in the same manner, and some CPUs will have wildly different temperature variations based on how Intel applied the thermal paste in between the CPU die and IHS. It's possible that you got the unfortunate draw and got a CPU that may not have had full coverage of the die. There isn't a 100% safe way to delid your CPU and apply an amount of thermal paste if this is actually the issue.

If you can adjust the fan speed on your radiator, set it to max and that should help alleviate some of the temperature problems. It couldn't hurt to check the thermal paste on your CPU to see if it's cracked or dry. If it is, you'll need to re-apply thermal paste.

EDIT: It IS possible that the pump on your H55 could be dying, but if it was I suspect the temps would cause a thermal throttle almost immediately under any kind of load.
 
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