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How I dropped my GTX 260 load temps by 25 Degrees. - UPDATE

post #1 of 424
Thread Starter 
We'll, I bought a GTX 260, and found the it was getting really hot. I then had an idea of removing the fan shroud and putting on a 80mm fan.

I got to work and found that the 80mm fan fit PERFECTLY on the cooler, Used a few cable ties and it was nice and snug.


Put it all back together, and added some AS5.


*note, I used Furmark stability test to load it.
BEFORE
Idle: 63
Load: 89

AFTER MOD
Idle: 42
Load: 64

This mod is amazing, That's all I can say. I thought it would bring a moderate decrease in temps, but I was so surprised.

The fan I used was a crappy 80mm CoolerMaster fan that's like 25CFM, I'm planning on getting two 50+ CFM 80mm fans and putting them on.

How To:
  1. Power down, shut off and remove video card.
  2. Flip the card on a flat, no conductive surface, with the fan facing down.
  3. Remove the 8 screws from the back of the card, after they are off, remove the heatspreader.
  4. Remove the two silver screws on the PCB, under the memory heatspreader.
  5. Remove 2 black screws on the rear of the card near the DVI ports and the vent.
  6. Remove the heatsink off the card. *Note, The thermal paste may have air bubble in it, which will keep the two sucked together, if this happends, just wiggle the card from left to right, until the suction is lifted.
  7. Flip the heatsink over, and remove 5 silver screws.
  8. Lift the plastic shroud off the heatsink, and repeat 1 to 6 backwards to put the card back together.
  9. Lastly, just find a fan, and attatch it to the heatsink with zip ties, or some other fastener.

I suggest this to all!



Edited by Shane1244 - 11/12/09 at 2:22pm
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post #2 of 424
Good idea! Does the fan cover your bottom PCIe slot though? May not work for those with SLI.
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post #3 of 424
*facepalms himself* for buying a $70 cooler that is maybe 10C cooler than that, but this mod is done free. wow, thumbs up to you man, everyone with a stock gtx card should do this.
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post #4 of 424
Great little mod. Simple, cheap, and very effective. Since you know it will work well, you should invest in some hardware to secure it properly. It looks like you could simply put some screws straight through the fan and into the fins. Just get the right diameter to fit snug without warping the fins too much.

Good luck!
Edited by PhillyOverclocker - 7/14/09 at 5:27pm
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post #5 of 424
wow. Nice
post #6 of 424
Makes it a 3-slot cooler, but that's pretty impressive nonetheless.
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post #7 of 424
holy cow im doing that right now.
post #8 of 424
Thread Starter 
Quote:
Originally Posted by ChIck3n View Post
Good idea! Does the fan cover your bottom PCIe slot though? May not work for those with SLI.
It takes up three slots, but SLI will still work fine in my 750i FTW

Quote:
Originally Posted by D3TH.GRUNT View Post
*facepalms himself* for buying a $70 cooler that is maybe 10C cooler than that, but this mod is done free. wow, thumbs up to you man, everyone with a stock gtx card should do this.
I know, I was eye balling the Thermalright ones, then I thought I'd learn my way around the card doing this. What are your load temps?
Quote:
Originally Posted by PhillyOverclocker View Post
Nice little mod. Since you know it will work well, you should invest in some hardware to secure it properly. It looks like you could simply put some screws straight through the fan and into the fins. Just get the right diameter to fit snug without warping the fins too much.

Good luck!
Yeah, I was thinking about those rubber fan connectors, then I can just wedge them in the heatsink.

The heatsink that's on the GTX 260 is actually quite nice, it's got 4 heat pipes and the copper base is pretty flat.
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post #9 of 424
my load temps are 51C with like 50% fanspeed.
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post #10 of 424
I thought about doing this with my 3870x2, but not so much for my 4890. Maybe it's time to start "thinking" again
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