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Looking at temp's & finding them rather high

post #1 of 5
Thread Starter 
My water cooled HD 7950 idles at 30-40c but at 30-40% load I am hitting 102c within seconds. Played a game for a few minutes to see if they would rise enough to shut the card down but it did not rise above 102c even when loads went up towards 65-70%. I am thinking bad or too thick TIM but does anyone have any other thoughts on the matter? The heat block has an exposed side so I can touch the actual contact block and it feels cold; as in not cool but cold. I have two radiators in the loop for just the gpu, a 120 x 4 and a 140 x 4.
post #2 of 5
Yeah it certainly sounds like theres a problem with heat transfer. If your anywhere close to 105 you should be feeling it in the block. Maybe not enough TIM? Or as you said too much? Can cause the heat to transfer around the GPU causing it to transfer heat back to itself? I would definitely re-seat it and see what happens, Make sure contact is made and theres no obstructions.
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post #3 of 5
Thread Starter 
Have re-seated it with different amounts of tim as well as screw pressure 31 times over the past day. Have also shortened all the tubing as well as made all the lines as straight as possible. I have put a stronger pump just in case but still idles at 35c then jumps to 90-103c within seconds of starting a game. All the tricks that I have used on my other water blocks just don't cut it with this one. I am beginning to think its cut corners in manufacturing process, will have to open the block itself up tomorrow and see whats what in there. I have contacted Swiftech but I have heard they are of the opinion that they never let a defective unit leave their factory's. So I may have to go with an EK...sad really, since I paid such a high price for the Komodo. I would even give them my card and ship it and the Komodo back to them just to see if its me going senile because I really think its the block.
post #4 of 5
Thread Starter 
Got it! HD7950 hits 52c at 100% load, which is very nice indeed! Took the actual block apart and guess what I found? A long slender piece of blue vinyl used for covering the thermal pads. None of the pads are shaped like a long line so I know it was left during manufacture. I was just about to toss the thing away, since I do not believe you can return Swiftech items if they have been used. I use two inline micron filters before and after the block when I first run the setup for a good cleaning and I guess this was just wrapped up in the block and was not able to be flushed out into the filter. After I removed as much as possible temps went way down and I made sure to hook up the filter again to see if any little bits of it would emerge...quite a bit did so I believe I have gotten it all out. Going to leave the filter on a while longer just in case.

On another note thank you dmfree88 for taking the time to answer my question in a quick precise way, Rep+ for sure. Ian
post #5 of 5
Glad you figured it out! Thats pretty crazy. Good thing it didnt blow up your pump from having to work so hard.

Hope to see you stick around, Welcome to OCN!
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