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View Full Version : GPU heatsink mod


s random
05-23-05, 04:50 PM
Not as much a mod as a fix but here goes, my GPU heatsink fan kinda died, and my temps jumped to the 80C+ so that was kinda a problem.

This was my card an albatron 6800 AGP, blue cover made of aluminum (i assume) with alot of copper under it as you will se a little late
http://www.albatron.com.tw/images/product/it/vga/picture/big/6800.jpg

well our first plan was take another 70mm we had 2 70x10mm fans, one with 1 broken fin the other with a crap motor, so we proceeded to switching the fins to have one good 70mm fan.

everything works out well, so we take off the heatsinks old burned out fan and we notice its a 70x5 so we decide to discard the whole blue cover all together and mount the 70x10mm fan

I promised you some copper and there it is
http://img.photobucket.com/albums/v356/xxiwnxx/d9a7dd32.jpg

Ok so we mount the new fan over the copper fins with rubber bands, only to after turning on the PC notice that the temps where still in the 80s, explicits followed promptly.

We pop open the case again and see that the rubber bands were obstructing the fan from spinning so we used thread to mount it instead. At this point we saw that the new 70mm fan wasnt spinning at all unless we push started it (its beyond me why) so i begun to brain storm and come to the solution to make a expansion slot blower onto the heat sink

Luckly my friend happened to have a stray piece of metal with some vent holes that we cut up and glued to a expansion slot cover and mounted a 80mm fan with twist ties.
http://img.photobucket.com/albums/v356/xxiwnxx/b514d048.jpg

Well it all came together and the temps got back in 50s with 60s at load.

One last pic of what it looks like with the vid card in
http://img.photobucket.com/albums/v356/xxiwnxx/7dd54458.jpg

shellshock
05-23-05, 05:01 PM
looks good!!

for even better preformance, id cut the grills out on that piece of meal


Oh ya, WELCOME to the forums bro!! :cool:

Flip-Mode
05-23-05, 05:05 PM
Welcome!!
Nice job!

Slayer2003
05-23-05, 08:00 PM
Certainly something I haven't seen done yet, props for originality n using what was around. :cool:

trailnut
05-24-05, 08:49 AM
Nice way to adapt to your problem.

Zulu-1
05-24-05, 11:16 AM
as shellshock said, i would definately cut holes in that peice of metal
right now, sucking so hard on that metal without any air there, will lower the life of that fan signifcantly

theMonster
05-24-05, 11:33 AM
Ghetto-Fabulous!!! I just went out and bought a pci-card with 2 60mm fans in it. I'm not all creative and stuff like that. :(

s random
05-26-05, 04:43 PM
thanks for the input, i recently cut out the vent holes, and bent the blower to make the clearence between the fan and the heatsink and it droped temps by 10C

lowfat
05-26-05, 09:30 PM
looks good. but just a hink, the reason the fan isn't starting up on its own is likely because its not getting enough voltage (lead on videocard might be 5V). Try cutting the wires off the connectors and plugging the red wire into the yellow wire of a a molex connector and the black wire into a black wire. The fan should start by itself then.