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Is there anything wrong with 'too much TIM?'

post #1 of 37
Thread Starter 
Hello,
Im just simply wondering if there can be any defects or performance decreases with installing too much thermal paste. Its a long story on how there is too much on my CPU, but yeah.

Thanks in advance.
    
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post #2 of 37
Yes, you can have too much TIM. It needs to be just enough to act as an interface between the CPU and Heat Sink. If it is too much it adds resistance and makes it harder to dissipate heat. Also, with too much it's possible the TIM flows off the sides of the CPU onto the MoBo and/or under the CPU and causes even more problems than just heat.
post #3 of 37
Thread Starter 
Quote:
Originally Posted by brfield View Post

Yes, you can have too much TIM. It needs to be just enough to act as an interface between the CPU and Heat Sink. If it is too much it adds resistance and makes it harder to dissipate heat. Also, with too much it's possible the TIM flows off the sides of the CPU onto the MoBo and/or under the CPU and causes even more problems than just heat.

I can see the TIM right at the side, just under the CPU block of my Hyper 212EVO.
    
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post #4 of 37
You really want the TIM to be as thin as possible, while covering the entire area. It's just meant to fill the tiny gaps between the metal plates.
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post #5 of 37
yep as everyone as said you can have too much TIM which will reduce the heat transfer to the heatsink. you can also have not enough TIM which has the same effect in higher tempretures. Best way is to apply a rice size grain blog in the middle of the CPU IHS seat the cooler and let the cooler spread it. then check you tempretures at idle and run a quick 5 pass of IBT and see your max temps using core or realtemp. if you feel they are too high or your system crashes, take the cooler off and remove the TIM and reseat the cooler. do this at CPU stock speeds first.
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post #6 of 37
+1 on what stubass instructed.
also as others have said if you use conductive thermal paste (i do not) if it leaks out and touches a electrical component then it's goodby motherboard and maybe even cpu.
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post #7 of 37
For that cooler it is important to keep it fairly thin because it doesn't apply enough pressure to squeeze out any excess, which results in higher temps.

There are not too many electrically conductive pastes out there. If you need to know, go to the manufacturer's web site.
post #8 of 37
Quote:
Originally Posted by GeneO View Post

For that cooler it is important to keep it fairly thin because it doesn't apply enough pressure to squeeze out any excess, which results in higher temps.
There are not too many electrically conductive pastes out there. If you need to know, go to the manufacturer's web site.

the most popular one out there Arctic Silver 5 is conductive.
I myself use Cooler Master ThermalFusion 400 which I tested
against AS5 and found it works the same and is not conductive.biggrin.gif
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post #9 of 37
Quote:
Originally Posted by jlhawn View Post

the most popular one out there Arctic Silver 5 is conductive.
I myself use Cooler Master ThermalFusion 400 which I tested
against AS5 and found it works the same and is not conductive.biggrin.gif

Arctic Silver 5 is NOT electrically conductive.
post #10 of 37
Quote:
Originally Posted by GeneO View Post

Arctic Silver 5 is NOT electrically conductive.
here is what it says on their site, so yes it's not conductive electrical wise but still not safe if it contacts sensitive items.


Not Electrically Conductive:
Arctic Silver 5 was formulated to conduct heat, not electricity.
(While much safer than electrically conductive silver and copper greases, Arctic Silver 5 should be kept away from electrical traces, pins, and leads. While it is not electrically conductive, the compound is very slightly capacitive and could potentially cause problems if it bridges two close-proximity electrical paths.)

http://www.arcticsilver.com/as5.htm
here is the link where i got the info.
Edited by jlhawn - 12/20/12 at 9:53pm
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