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Reapplying Thermal Compound To GPU

post #1 of 6
Thread Starter 
I have a HIS 6950 and I want to reapply the thermal compound to see if I can get better temps, what is the best way to do it, and what type of thermal compound is best to use.
Edited by Whimis - 11/21/12 at 7:24pm
post #2 of 6
Thread Starter 
bump
post #3 of 6
Hey brother i have done this a few times on different cards and always use leftover noctua TIM since they give you a big plunger, its easy to spread, and works great. Notua's ITM is almost to thin, a thicker paste could work better for spreading. Remove the shroud and fan carefully likely held in by tabs or screws. Remove the heatsink four screws on the back. Do not remove the memory heatsink plate they can take IC's with them as the thermal tape does not release. Clean all the old TIM with 90% alcohol. Spread new TIM with a credit card evenly and thin on the chip face, clean up the edges if needed, and reinstall the heatsink. Make sure you have the right screwdriver for the heatsink screws i think its a 0 you get at a electronics shop or hardware store, I have stripped them out using 1 before.

Best threads out there about spreading TIM, and TIM comparison. Not much covered for GPU use but transferable info for sure. My rule of thumb is spread evenly, do not use the rice or pea method, and you can go slightly thicker than cpu coolers as heatsinks may have more variance in finish and how flat they are, but never use a lot it will hurt cooling performance.

Best Thermal Paste Application Methods

80-way Thermal Interface Material Performance Test
Edited by ryan w - 11/22/12 at 5:05pm
 
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post #4 of 6
Thread Starter 
ok thanks I will try this out soon
post #5 of 6
I'm sure there are better thermal pastes than arctic silver 5, but that's what I've always used. simply because when I got a tube of it, its lasted me forever and I haven't needed to buy any more in a long time. anyways, reapplying the TIM has usually gotten a degree or two lower temps for me on a stock cooler. nothing to write home about, but enough to make me feel accomplished XD

for re-application I use 91% rubbing alcohol and q-tips for the cleaning off old TIM. for applying a new dose of TIM I generally put a small dot in the center of the die and spread it outward with a piece of clean, folded up printer paper. being careful not to scratch the surface of the GPU die. I'm sure there are less ghetto methods but this way seems to work great for me.

imho the best way to get better temps on the GPU is to make sure you have great airflow in your case. of course a combination of better airflow and TIM re application will be a great cheap way to make sure your card stays cool.

and don't forget to re attach the stock cooler's fan power cable, otherwise that sucker will overheat FAST.

hope that helps!
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post #6 of 6
I know this is the OCN network, but not everybody pays the proper attention to pressure while reassembling the heatsink. An inadequate contact would deteriorate your results, thus I suggest that you don't tinker with it unless you are really suffering unnerving artifacts.
Edited by mtcn77 - 11/24/12 at 1:21pm
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