cooling top of geforce 3

[rukidn]

the top of the pcb on my geforce 3 gets very hot in the spot where the gpu sits on the opposite side of card.im sure those" in the know" have noticed that and have come up with a good solution to cool this area.the solder points make a small square in that location and i was wondering if i put some artic silver in there and put a small heat sink on there if the contact with the solder points would cause a short?i saw a post about putting a coulpe of pennies cut and polished in there to raise the heat sink up a couple of mm.any advice would be greatly appreciated.espessaly some of u smartt engeniears.
thank you

[TruckChase!]

Don't use arctic silver dude.. it will short the stuff out. There's been some debate as to weather it's electrically conductive or not, (i say it is.. just a wee bit, everyone else says it isn't :) ) but the consensus definitely is that it will induce crosstalk between components. What I did on my card was take a small chipset heatsink (similar to a "greenie") with a small fan and affix it to the back of the card using double sided thermally conductive tape. (aka fragtape) It seemed to do the trick.

[Wa11y]

Originally posted by TruckChase!
Don't use arctic silver dude.. it will short the stuff out. There's been some debate as to weather it's electrically conductive or not, (i say it is.. just a wee bit, everyone else says it isn't :) ) but the consensus definitely is that it will induce crosstalk between components.

I was wondering about cooling the backside of my video card, and I figured ASII was electrically conductive, so I had no idea how to make the HSF tranfer heat better. But "Fragtape" you say? Where can I find this "Fragtape"? Will radio shack have it?

[TruckChase!]

Nah, radio shack doesn't have it unfortunately. I haven't found a good retail source for it as of yet. Here's an example of what I'm talking about:

http://2cooltek.safeshopper.com/50/94.htm?390

Alas, it's kind of a ripoff for what you're getting. I've found the stuff at a couple electronics/surplus stores before for about 1/5th of what the overclocker places charge, but they don't stock it on a regular basis. :(

P.S. That Hasslehoff avatar RULES. Did you ever see the "trailer" for his "Phantom of the Opera" play? Man... that guy is almost as hilarious as Geraldo Rivera.

[Da Whip]

Here is a simple solution, I have one and it works great;
http://www.jsihardware.com/reviews.php?ID=49[/URL]

[Diggrr]

I used Kapton tape on the bottom of a heatsink. Applied white goop and smushed it on. Kapton tape is a celophane type electric tape, but conducts heat. Too bad it's $30 bucks a roll.

As for the airlift? Why not just put rubberfeet on a fan and set it on the card. That's what's on my satelite modem.

You could try puting a strip of electric tape down two opposite edges of the heatsink's bottom. Apply generous goop to the center. Squish it on. The tape should be thick enough to keep the conductive center from touching, the goop would do the rest.
You must check to make sure that no silver bits on the card will touch before gooping it on though.

[rukidn]

i want to make sure i get good contact between the board and the heat sink.if the alum. of the sink touches the solder points derectly it will conduct a current right?what about the idea of cutting and polishing a couple of copper pennies and glueing them deretly to the board between the solder points then attaching a small northbridge chipset cooler to them?