CPU Overheating Issues

Dygard · Oct 8, 2015

Hey all,
I have not been able to escape heating issues since building this my new PC last autumn.
My specifications are:

CPU: i7 4790k
GPU: AMD Radeon 5750
Motherboard: Asus Maximus Impact VI

So the problem is, anytime I attempt to play a video game, the heat goes nuts. If I play for around 20-30 minutes, or if a particularly "taxing" amount of animation is going on, my system crashes. So I installed a heat monitor and a fan control for my graphics card. The fan control doesn't help because it is my CPU that's overheating, not my graphics card.

My ambient CPU temperatures sit anywhere from 35-50, which is ridiculously high. When gaming my PC will hover in the 85-97 range after no time at all. So, I assumed I could just buy a cooler to solve the problem. Two days ago I installed a Corsair H100i cooler, and while it seems to have lowered ambient temperatures, it does not appear to have had a significant effect during gaming.

I'm still learning about PC, so I really don't know what to do at this point. Can anyone please help me? I'm pulling my hair out over this.

Compuser10165 · Oct 8, 2015

If you had the stock cpu cooler that would explain the high temps (especially with an oc). However, if even the H100i does not solve the problem you need to make sure you have attached the heatsink (pump module ,in your particular case) on the cpu correctly. Also make sure you have applied enough thermal paste (to much is bad as it actually insulates the cpu, too little creates an inefficient heat transfer). Check temps with the h100i after boot, while idle, multitasking and gaming. Also, make sure you have sufficient airflow in the case (vrm of the motherboard tend to get hot without proper airflow).

WVMountie07 · Oct 8, 2015

Have you done any OC'ing? CPU Voltage is a major contributor to temps. Make sure your case has enough intake/exhaust as well.

R4lNM4N · Oct 8, 2015

So, when you installed the Corsair H100i, did it come with stock thermal paste? Don't use that. If you did, remove the cooling block and clean all of the thermal paste off of the cooler. Use a very thin layer of fresh thermal paste - as too much will actually insulate the heat spreader. Confirm that the cooler is pumping the liquid and that the fans are running on the radiators.

Basically, I think if you re paste the cooler and re mount it - you will see a difference

And when you say ambient temps, do you mean idle temps? Ambient temperature is the temp in the environment the machine is sitting in ie, you bedroom, grandma's basement etc.

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CPU Overheating Issues

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