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8800gts (Heatsink application)

post #1 of 5
Thread Starter 
HI All, currently putting a swiftech Heatsink kit on my 8800GTS using AS Alumina adhesive. Got the sinks on the memory no problem. My question is in regards to the 4 Black sinks that I believe go on the Mosfets. Anyway, those chips are so small and they each have 4 metal leads comming off of them (1 sink covers 3 of them). Any tips for applying the Alumina on these chips as they are so small I don't see any way of getting the adhesive on there without getting some on the metal leads?? (From what I understand Alumina is non-conductive, is it ok if a very small amt gets on the leads.)

Thanks
Chris
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post #2 of 5
Only if youre positively absolutely bet-your-life-on-it-sure that it is not conductive, and even then, do everything you can possible do not to. Oil off of your fingers can get on the heatsinks which could then be transferred to the thermal cmpd which will then put conductive impurities in it. Some of these places have a much better and highly detailed guide on their websites, I would check on swiftech's site and make sure, you might get some better advice than the crappy instructions it probably came with.
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post #3 of 5
Thread Starter 
Thanks for the reply..From the AS website "Arctic Alumina Adhesive is a pure electrical
insulator, neither electrically conductive nor capacitive."

Anyone have any exp with this stuff??

I tried using the tape that comes with them but they fell off right away....
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post #4 of 5
Quote:
Originally Posted by freebird View Post
Thanks for the reply..From the AS website "Arctic Alumina Adhesive is a pure electrical
insulator, neither electrically conductive nor capacitive."

Anyone have any exp with this stuff??

I tried using the tape that comes with them but they fell off right away....
I used it on my friend's 8800GTX after his heatsinks from his Thermalright HR-03 kept falling off. I couldnt find any suitable thermal tape, so I went with the Arctic Alumina.

The trick is to not use too much. It literally needs a pinhead sized drop per application. They will slide so make sure the card is perfectly level. You will have about 7 min before it begins to set, so feel free to make minor adjustments within the first few minutes. But once they are on, nothing is removing them.

As for the supplied tape, the trick is to clean the chips with alcohol or Arctic Clean first. Then place the heatsinks on the card and let them set overnight. I heated the heatsinks up and let them cool 2 or 3 times while I let them set. This helps the tape to bond better (IMO). I have yet to have a problem with any sinks falling off.
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post #5 of 5
Thread Starter 
Thanks again for the reply!!

Used a small plastic toothpick and put a small dot on each chip they went on fine.

Thanks for all the help +Rep

Chris
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