i7 4770k temp problem

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Alin Trogmaer

Honorable
Oct 6, 2013
2
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10,510
Hello guys,

I have a self made system (my first one) with the following components:
- Intel i7 4770k CPU
- Noctua DH-14
- Asus Hero motherboard
- Corsair Vengeance 2400 MHz RAM

My problem is that the CPU is heating up when under load. It gets idle temperatures of 30 - 32 degrees C and I cannot run Prime95 without it shutting down.

I tried reapplying the thermal paste that came with the cooler 2 times and I got a good result the last time: Prime95 blended test took my CPU up to 61 degrees C during a 40 minutes test (compared to a system restart after a 3 minutes' test before this). Everything looked to be in order, but after a day the high temperatures came back.

During all tests the CPU cooler was set to maximum speed and the motherboard was around 30 degrees C.

Has anyone experienced this before? I'm thinking that the thermal paste is the reason for this, but I would like to hear your opinion and advice about this as well.
 
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Y0GI

Splendid
Jul 22, 2013
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Are you worried about 61*C.? Because that is a great temp. for Haswell. As long as core temps stay below 90*C. you're fine.

Yogi

 
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A

Alin Trogmaer

Honorable
Oct 6, 2013
2
0
10,510


I'm using the Noctua NT-H1 thermal paste that came with the DH-14 cooler. I don't know exactly how old it is.
The thing that puzzles me is that I managed to get a maximum 61 degrees with the blend test of Prime95 for 40 minutes right after the third installation of the cooler. But that is gone now - I get up to 60 degrees at windows startup.

@Yogi: 61 degrees during the test is a great temp, I know that. I'm worried now that I cannot run Prime95 without my system shutting down.

Because I managed to get a good temp for a while I'm thinking that the CPU and cooler are ok (otherwise, in my opinion, that shouldn't have happened).

LE: After changing the paste (I bought Arctic Silver 5) and changing the direction of one of the chassis fans I managed to get a normal temp of 64 degrees at full load.
Thank you for your answers, guys.
 
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Jakke

Honorable
Oct 24, 2013
10
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10,510
Great to hear your problem is solved. Direction of fans is always a major issue with cooling!
Not only that, but the overall air flow should be as efficient as possible. Clear out any loose cables because they cause obstruction. Choose a case that is as big as possible. Cover all case openings that are not used for fan in/outlets to increase fan efficiency.
Don't force hot air to go down, by nature it goes up.

I've got a 4770k as well, I am using a Corsair H55 liquid cooling ($50) which is maintenance free and easy to install. My temps under normal load are 34-35 degrees and when my cpu is pushed to constant 100%, it never goes over 58°C.
I have 6 HDD's in my case which are also a serious heat source, but if you just stick to logical rules of air flow, there shouldn't be a problem to keep things cool
 
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