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What's The Best Way To Apply Thermal Paste On A GPU - Page 3

post #21 of 82
Thread Starter 
Quote:
Originally Posted by TheBirdman74 View Post

just a dot the size / length of the nvidia logo in the center. thumb.gif

thanks smile.gif.
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post #22 of 82
Quote:
Originally Posted by tsm106 View Post

Depends on the viscosity of the TIM. Thick = X or spread and thin = pea.

Sorry to bump this very old thread but how big of an X if I use Prolimatech PK-1 on a GTX 670 bare die?
post #23 of 82
Thread Starter 
Quote:
Originally Posted by kevindd992002 View Post

Sorry to bump this very old thread but how big of an X if I use Prolimatech PK-1 on a GTX 670 bare die?

i just use the spread method, and i actually get great temps. make sure you don't use to much paste smile.gif.
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post #24 of 82
Quote:
Originally Posted by AWESOME_3_SOME View Post

i just use the spread method, and i actually get great temps. make sure you don't use to much paste smile.gif.

This doesn't work too well for me since the heatsink of my GTX 670 uses heatpipe direct touch technology which has gaps between the heatpipes.
post #25 of 82
Logically, any method that starts with gaps between the location of the paste is going to end up with air pockets. They may be very small, but they will be there. With one location, either a pea size spot or a line, the paste will push all air out as it is squeezed out itself. If there are different spots, the air in between the spots can easily become trapped and end up causing a gap.
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post #26 of 82
Quote:
Originally Posted by Capt Proton View Post

Logically, any method that starts with gaps between the location of the paste is going to end up with air pockets. They may be very small, but they will be there. With one location, either a pea size spot or a line, the paste will push all air out as it is squeezed out itself. If there are different spots, the air in between the spots can easily become trapped and end up causing a gap.

I'm not sure if I get what you mean. What do you mean any method that starts with the gaps between the location of the paste? Do you mean gaps between the heatpipes?
post #27 of 82
Thread Starter 
Quote:
Originally Posted by kevindd992002 View Post

I'm not sure if I get what you mean. What do you mean any method that starts with the gaps between the location of the paste? Do you mean gaps between the heatpipes?

i would put a small blob paste on each heatpipe, so when you put the heatsink back on. each heatpipe would make contact with the gpu.
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post #28 of 82
Quote:
Originally Posted by kevindd992002 View Post

I'm not sure if I get what you mean. What do you mean any method that starts with the gaps between the location of the paste? Do you mean gaps between the heatpipes?

No. Consider. If you put small blobs in five different locations, a start pattern, then there is air in between the blobs when you start applying pressure by mounting the block. As the blobs spread and meet, will all of the air in the gaps in between them get out, or will some of it become trapped in the paste itself?
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post #29 of 82
Quote:
Originally Posted by AWESOME_3_SOME View Post

i would put a small blob paste on each heatpipe, so when you put the heatsink back on. each heatpipe would make contact with the gpu.

How about the gaps between the heatpipes?
Quote:
Originally Posted by Capt Proton View Post

No. Consider. If you put small blobs in five different locations, a start pattern, then there is air in between the blobs when you start applying pressure by mounting the block. As the blobs spread and meet, will all of the air in the gaps in between them get out, or will some of it become trapped in the paste itself?

Ahh ok. So which do you recommend for my heatsink? It uses direct heatpipe technology with the default gaps in between the heatpipes where air will most probably be trapped anyway?
post #30 of 82
Quote:
Originally Posted by kevindd992002 View Post

How about the gaps between the heatpipes?
Ahh ok. So which do you recommend for my heatsink? It uses direct heatpipe technology with the default gaps in between the heatpipes where air will most probably be trapped anyway?

The only heat transfer is where the block (or heatpipes) actually come into contact with the CPU itself. Gaps between the block and the IHS are the only thing to be concerned about.
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