With CoolerMaster Hyper T4 CPU running too hot !?

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desmond1303

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Jan 16, 2014
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I just bought a Cooler Master Hyper T4 and installed it on my i7-4770.
At idle, it performs just fine,at around 35-40°C.

BUT, and that's a BIG BUT,
Under full load on the CPU, it RPMs to 1600 and the CPU runs to 100°C and the PC shuts down... It takes about 30 second to get from 35 to 100, when full load is applied !

Is there anything I can do, or is the cooler just not powerful enough ???

Please answer, help is much appreciated.
 
Solution
Shneiky
@Jake Fister,

All you said is false.

1. Copper has a thermal conductivity of 401 W/(mK). While a TIM like the Arctic MX-4 has 8.5 W/(mK). Copper is 50 times more conductive. Copper to copper heat transfer is almost instantaneous compared to Copper to TIM to copper heat transfer.

http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html

http://www.arctic.ac/eu_en/mx-4.html

2. The thermal paste's role is to ellimate the air between the CPU heat spreader and the cooler. Since air is an isolator.

3. The amount of heat transfer is different than the speed at which the heat can be transfered. The thicker the TIM, the slower will heat transfer to the heatsink. This leaves heat building up in the CPU.

4. The thicker the TIM -...
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desmond1303

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Jan 16, 2014
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Well... I put all of the past the came with it (in a tiny sealed "pocket") in a ball type shape in the middle of the processor and then put the heatsink on...

Yes the screws are very tight...

Can it be that the thermal paste needs time to settle ? As i have tested the full load a minute after the installation ?
 
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desmond1303

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Jan 16, 2014
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So... The fact the it's at only 35°C at idle doesn't mean that it wasn't too much ?
 
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Shneiky

Shneiky

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Aug 21, 2011
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My old-but-gold 2700K which idles at a lot higher wattage than your Haswell and is idling 2-5 C above room temperature with a 212 Evo. A Haswell idling consumes so little as 5W and under, that it should not go beyond 5C over ambient with the T4.
 
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Jake Fister

Jake Fister

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Jun 4, 2014
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Too much paste would not cause that. It MIGHT short out something if it is metallic based, but it's thermal conductivity is not related to the amount of it you apply. Unless it's more than a few mm thick (which I'm sure it isn't since you said the screws are tight), then I'm sure that's not it. It's designed to conduct heat so if you put too much on, the worst that would happen (if it isn't conductive) is that there is more paste there and it absorbs more heat until it dumps heat at the same rate it absorbs it (thermal equilibrium) and at that point your cooler should dump anything not being absorbed by the paste. I WOULD, however, reapply it just in case there is an issue there. Not sure what it would be but it's a cheap thing to try first so you can't really go wrong. Make sure that's not the issue first (although I personally can't think of a reason that would be the issue if you idle at 35 C, that's a good temp). Check your voltage in the BIOS and make sure it wasn't cranked up on accident. I'm not sure what else to tell you at this point.
 
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Shneiky

Shneiky

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Aug 21, 2011
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@Jake Fister,

All you said is false.

1. Copper has a thermal conductivity of 401 W/(mK). While a TIM like the Arctic MX-4 has 8.5 W/(mK). Copper is 50 times more conductive. Copper to copper heat transfer is almost instantaneous compared to Copper to TIM to copper heat transfer.

http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html

http://www.arctic.ac/eu_en/mx-4.html

2. The thermal paste's role is to ellimate the air between the CPU heat spreader and the cooler. Since air is an isolator.

3. The amount of heat transfer is different than the speed at which the heat can be transfered. The thicker the TIM, the slower will heat transfer to the heatsink. This leaves heat building up in the CPU.

4. The thicker the TIM - the easier and more likely it is for air bubbles to appear. They significantly reduce the heat transfer.

5. 35C idle is far too high with a Haswell CPU. Even Intel Boxed cooler performs better when idling. A non overclocked 4770k or a 4770 should be less than 60C (depending on the case and airflow) at full load and less than 25C on idle. All is considered in 20C room.

The bag that the thermal paste comes with the T4 is enough for 4-5 applications. The TIM is definitely too much and it is causing the problem.
 
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Solution
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desmond1303

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Jan 16, 2014
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I have fixed it... Now it idles at around 25°C and at full load it goes up to 60°C.

Now, I know that all of you (and including myself) will think that I am an idiot when I tell you what the problem was. I discovered it while reseating the Cooler. I FORGOT THE DAMN STICKER ! The protective sticker on the bottom of my heatsink was still on !

I know...

Anyway, Thank you, to all of you who tried to help.. I appreciate that very much.
 
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