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Odd Substance found on GPU

post #1 of 10
Thread Starter 


The above image is of my brothers nVidia 670 GPU. He is currently having problems with the fan spinning up like a madman while playing No Man's Sky, so he took the cover off it to clean the dust away and we noticed that on the underside.
Not sure what it is but it feels like a grease.

Is this some kind of corrosion or something else? Any help would be appreciated.
post #2 of 10
Does he smoke?
post #3 of 10
That is normal. If you look at the TIM on the core it is probably dry and has small things that look like cracks. That is what is pushing the temps up.

Is it a blower cooler?
    
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post #4 of 10
Seems like fine dust that got heated up to much/often.

Dust turns like its baked on the PCB and is pretty hard to get off but doable.
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post #5 of 10
Quote:
Originally Posted by Farih View Post

Seems like fine dust that got heated up to much/often.

Dust turns like its baked on the PCB and is pretty hard to get off but doable.

I gave you a ninja. To be honest I think the grease looking stuff is cutting oil/fluid that was used on the core screws when they were made. I have seen on it many of my cards and it has never been a problem.
    
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post #6 of 10
Many motherboards and GPUs are covered with crap out-of-box. PCBs are rarely cleaned well before the parts are assembled; all the handling during assembly and packaging doesn't help much either. Silicone oils from thermal pads, other stuff you'd expect to be around an industrial/manufacturing setting, plus a fine layer of dust, and you have some pretty grungy parts.

None of this is likely to be related to the issues with the fan spinning up in No Man's Sky. Make sure the heatsink is clean. If it already is, or the problem persists, it might be worth checking the TIM application on the GPU. However, it could simply be a particularly demanding game.
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post #7 of 10
If there are fan noise/fan problems it could be the oil from the bearing. Either way, I doubt it could be anything serious.
post #8 of 10
Thread Starter 
Quote:
Originally Posted by hertz9753 View Post

That is normal. If you look at the TIM on the core it is probably dry and has small things that look like cracks. That is what is pushing the temps up.

Is it a blower cooler?



Thats his type of card.
post #9 of 10
Thread Starter 
Quote:
Originally Posted by GreedyMuffin View Post

Does he smoke?

Nope, doesn't smoke.
post #10 of 10
I had a couple of the EVGA GTX 660's and three 660 TI's with that cooler. So many screws to pull the cooler off.

When I took off the blower from a GTX 770 to replace it with an ACX cooler I put the thermal pads a sheet of paper and all of the pads left stains on the paper about 1/2 inch around each one.

I use Arctic MX-4 on my GPU's because I asked for the best cheap non conductive TIM.
    
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