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Extremely high temps with i7 4790k(stock clock) & h100i water cooling?

Hey guys!

As the title says I get really high temps while gaming/stress testing my i7 4790k at stock clock for some reason.

I replaced my thermal paste (first cleaned with alcohol made for cleaning CPU's), re-attachted the cooler and switched out one of the stock fans with Noctua NF-F12's.
Idling at about 30-35C* but having high temps, around 70-80C* (with high performance mode in corsair link) while gaming, is this normal with the h100i?
Feels odd.
(there's no dust inside the case)

I've building and fixing with the PC all day as I've had issues with my new 1080 so this just makes me sad haha.

Here are two pictures of my PC build with the h100i at the top, an (not visible) air intake fan on the right and one to push out air on the left side. The h100i ones are pushing air out of the case.

[PC](http://i.imgur.com/x2VtvVe.jpg)

[PC](http://i.imgur.com/j3tuxUq.jpg)

Here's a screenshot of CPU-id:

[CPUID](http://i.imgur.com/x1QbBO8.png)

This is my idle temps & stuff after some gaming (20 min after), quite bad?

[Corsair Link](http://i.imgur.com/BMgZ5jZ.png)

Any help would be so good, I've been dealing with this issue for a while.

Cheers, thanks!
3 answers Last reply Best Answer
More about extremely high temps 4790k stock clock h100i water cooling
  1. You're under 70C, so I don't see much of a problem with your CPU temps. Those CPUs can handle up to about 90C before they start to thermal throttle.

    What problems are you having with your GTX 1080?

    What is your power supply?
  2. weberdarren97 said:
    You're under 70C, so I don't see much of a problem with your CPU temps. Those CPUs can handle up to about 90C before they start to thermal throttle.

    What problems are you having with your GTX 1080?

    What is your power supply?


    I solved the GPU issues, it was due to a bad PCIE slot.

    I know, but I feel that it idle's at a way to hot temp and is getting too hot while gaming. I mean, I got no overclock and it's performing worse/equal to the stock air cooler?
  3. Best answer
    Did you clean off the thermal paste from the stock cooler and apply new thermal paste when mounting the H100i?

    What thermal paste did you use? I recommend using Arctic MX-4 or Arctic Silver 5.

    How did you apply it to the CPU? I recommend the "grain of rice method". This means to apply thermal paste as a line down the center of the CPU, it should be about the size of an uncooked grain of rice. If you were using the more premium LGA2011-3 socket, I would recommend using more paste because those CPUs have larger heat spreaders, but that's not the case here.
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