GTX 260 Fan Mod
 

Today I got bored and found an old fan lying around and decided hey what the hell. In this post I'm just gonna talk about how this whole thing went and ultimately if it's worth it or not....

The card I'm using is a BFG GTX 260 Maxcore 55 OC. The overclocking software I used is MSI Afterburner. As far as I know the stock memory clock frequency according to Newegg is 2250 MHz? I'm sure that I'm getting this wrong because I can't even set frequency that high in Afterburner. So for this test my frequencies are 655/1404/896. For the benchmark I used FurMark. Settings for that are 1280x720, No MSAA, 60 seconds long and not in full screen.

http://i705.photobucket.com/albums/w.../afterburn.jpg

My system specs:

i5 750 @ 3.6 Ghz
GTX 260 Maxcore 55 OC
750 Watt Ultra PSU
GA P55M-UD2
Thermaltake SpinQ
Two 24" ASUS Monitors

Prior to the addition of the fan:

*It is important to note that even though the stock fan is set to auto in afterburner the level never changes from 40% in all the tests%

http://i705.photobucket.com/albums/w...nchmarking.jpg

Love me some big furry donut... eh.:canadianwave:

Results from FurMark...

http://i705.photobucket.com/albums/w...fanresults.jpg

Not really sure if those results are good or bad. Any input?

Now let's get to modding! Essentially all I did was mount a fan on to the hole of the existing fan.

http://i705.photobucket.com/albums/w...723_143332.jpg

http://i705.photobucket.com/albums/w...723_143356.jpg

I used elastic bands and a few foam pieces to dampen the sound (Which worked out very well). The plastic mounting devices were already there so I used them to my advantage.

http://i705.photobucket.com/albums/w...723_143414.jpg

http://i705.photobucket.com/albums/w...723_143428.jpg

I put it back into my system and booted up.

http://i705.photobucket.com/albums/w...723_143702.jpg

Results with the fan mod....

http://i705.photobucket.com/albums/w...anresult-1.jpg

Hmmm seems as though they are pretty much the same.

Basically as of now this was a complete waste of time.

I will continue to test maybe using a stability test rather than a benchmark. I'm not sure that within the minute the temps reached their max. So I might be updating this post hopefully with some better results :D

nice.

no smoke from the rubber touching hot areas in the back of the gpu,yet? :)

also,did you remove the stock blower or its still there?

if the fan never changes speeds, then you got a bugger

get nbitor,save a copy of the stock bios,then
open up the saved file in nbitor(again) and go to the fan control ic settings.

put it on auto,or if its already on auto,then set things manually. minimum 30%,with a slope of,
well you chose those settings.

and then use nvflash to write it to the card.

jobbe done

No smoke yet :thumb:

And the fan does change speeds but only when the temp gets high enough. I should probably adjust the settings, think I can do it in afterburner.... yea I can.

move the fan a little to the left (looking at first photo), so the blades are right above the hole.
the reason why the fan doesnt change speeds on auto is because it only starts doing so at about 70-72 degrees, and since you only run tthe benchmark for 60 seconds it doesnt happen.
you should run the test for a longer time to eliminate any errors. like 10 min for example

Just ran two 10 minute stress tests. With the fan the highest temp was 83 degrees and w/o it it was 96! So it seems as if it is doing something! I should raise the stock fan speeds because Those temps are still too high.

There was this fan mod for the 260 where the individual took out the cooling shroud and strapped a fan directly over the heatsink. Try that and see what happens :)

Yes I've seen that but I don't think I have enough room because I have a wireless adapter in the next slot.