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I think i just threw $460 out the window!! - 6970 TIM replace

post #1 of 32
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I have an MSI 6970 and Arctic Silver 5 thermal compound.
I took off the heatsink and wiped all of the TIM off aswell as that on the GPU. I then cleaned three times each with rubbing alcohol 100%. Then I applied a small amount of TIM, maybe half an average pea, to the GPU and spread with a card. I kept being a perfectionist and scraping till the TIM was mostly on the credit card and applied more to the GPU. Eventually I was happy with the amount, still being thin, and I reassembled it and booted up the PC. Do note that the heatsink would wiggle a bit after being screwed on. Is this normal? I cannot screw it anymore as the threading is fully inside the heatsink.
As soon as I got into windows the fans went to full RPM and the GPU was running at 90C on idle. I quickly turned the PC off and am now very scared.
I took off the heatsink and the TIM was on the little nodes that surround the GPU. They look like little buildings.
I have cleaned the gpu, including the nodes, ready for round two.
How should I go about this?
Edited by vinyc3 - 11/16/11 at 3:19pm
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HAFX V
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post #2 of 32
the tim is fine just make sure you seat the Heatpipes and sink correctly thats why it showed 90c cause the heatsink/pipes arent touching the GPu
post #3 of 32
No it shouldn't wiggle. Something is effed. Try a pressure washer or some kind of compression spring to get that heastsink tighter against the gpu.
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post #4 of 32
Quote:
Originally Posted by vinyc3 View Post

I have an MSI 6970 and Arctic Silver 5 thermal compound.
I took off the heatsink and wiped all of the TIM off aswell as that on the GPU. I then cleaned three times each with rubbing alcohol 100%. Then I applied a small amount of TIM, maybe half an average pea, to the GPU and spread with a card. I kept being a perfectionist and scraping till the TIM was mostly on the credit card and applied more to the GPU. Eventually I was happy with the amount, still being thin, and I reassembled it and booted up the PC. Do note that the heatsink would wiggle a bit after being screwed on. Is this normal? I cannot screw it anymore as the threading is fully inside the heatsink.
As soon as I got into windows the fans went to full RPM and the GPU was running at 90C on idle. I quickly turned the PC off and am now very scared.
I took off the heatsink and the TIM was on the little nodes that surround the GPU. They look like little buildings.
I have cleaned the gpu, including the nodes, ready for round two.
How should I go about this?

Best guess is you didnt seat the hs all the way or something. Another thing is, i have never spread the tim ever(and its not reccomended to due that either). You want the hs and the chip to spread the tim itself. its the best way to do it so that there is as little amount of air bubbles as posible.
post #5 of 32
Spreading TIM with a card creates tiny air bubbles. Use pea method + pressure.

Do you see cooling pads anywhere? Perhaps they aren't connecting.
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post #6 of 32
I suggest putting a little rice grain in the middle, screwing the heatsink on and then taking it back off to see how it is spreading. It may not be making good contact. Also, make sure all of the thermal pads are intact. I didn't have good luck changing the TIM on my XFX 6970 since the thermal pads went bad after i took it on and off once or twice.

Another suggestion is one i saw noted somewhere else that i didn't see until i already RMAd my card. Screw all of the screws that are around the edges first, then the 4 directly behind the gpu. I did it the other way around and never had any good luck.
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post #7 of 32
too much tim, it's probably bridging those nodes and shorting out. clean it off thoroughly with rubbing alcohol.

dont need much tpaste, i think half of normal is too much imo. get some pads.
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post #8 of 32
FYI Gpu needs more tim than a cpu. Pea size or more is recommended.
Edited by Not A Good Idea - 11/16/11 at 3:27pm
post #9 of 32
Are you sure the layer of TIM isn't too thin? I'd clean it off and apply and small amount and allow the weight of the cooler to spread it evenly.
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post #10 of 32
Apply your TIM using the Line Method vs the pea method as it has slightly more TIM vs the Pea method.

For Video Cards TIM I Recommend would be

NT-H1
ASC
Shin-Estu
Don't use electrically conductive pastes as if you put it on anything but the chip the electric current is shorted.

THIS MEANS NOT AS5
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