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[Official] NVIDIA GPU Mod Club - AKA "The Mod" - Page 104

post #1031 of 8622
Before.

450

Fitting.

450

After.

450

I fitted foam pads under the wiring holding the block in place, then placed two strips of aluminium above that, then slipped the outer wiring on top of that. It's actually more solid than with cable ties now.

450

Two H100's in one system. thumb.gif
Temps! (Click to show)
Idle:
375

Load: (Furmark 720 run twice)
375

Edited by PathOfTheRighteousMan - 4/25/12 at 7:43am
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post #1032 of 8622
cool well done mate, getting a little cluttered in your case now though wink.gif Why did you have to fit all the foam pads? frown.gif

Can anyone tell me, how does lapping help temps? Surely if TIM sits between the block and GPU anyway how can lapping help to lower temps?
Edited by Darylrese - 4/25/12 at 8:50am
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post #1033 of 8622
Lapping removes the nickel plating that the chip manufacturers put on the CPU/GPU to protect the copper heat spreader. Removing this layer of nickel plating means a better heat transfer. More than that, lapping until a mirror finish removes all of the small scuffs and scratches that are on the CPU/GPU. So when you put on some very good TIM then the temps will drop.

Personally I only ever lapped a Celeron 2.2Ghz 478 cpu so I could get it past 3.5Ghz. I dont see a need to lap anything that is high performance. Waste of time. Just get a better cooler.

If anything lapping a GPU makes less sense than a CPU. You'd change a video card more often so it would be pointless.
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post #1034 of 8622
Quote:
Originally Posted by Darylrese View Post

cool well done mate, getting a little cluttered in your case now though wink.gif Why did you have to fit all the foam pads? frown.gif
Can anyone tell me, how does lapping help temps? Surely if TIM sits between the block and GPU anyway how can lapping help to lower temps?

In the case of the Kuhler 620 the block is slightly convex meaning the middle has a point, the block is not flat. Lapping this is simply to make it flat. A Flat surface on a flat surface makes better contact than a convex surface on a flat surface.
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post #1035 of 8622
hmm not so sure its worth me lapping it then as it will cost a little bit for the sandpapers etc. I might just mount it with the bracket and call it a day. Just in process of spray painting the bracket then ill be able to fit it tomorrow when my parts arrive smile.gif Pics to follow thumb.gif

By the way just so im sure, will a blob of TIM in the center of the GPU suffice?
Edited by Darylrese - 4/25/12 at 9:41am
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post #1036 of 8622
Quote:
Originally Posted by Darylrese View Post

hmm not so sure its worth me lapping it then as it will cost a little bit for the sandpapers etc. I might just mount it with the bracket and call it a day. Just in process of spray painting the bracket then ill be able to fit it tomorrow when my parts arrive smile.gif Pics to follow thumb.gif
By the way just so im sure, will a blob of TIM in the center of the GPU suffice?

I didn't lapp mine, works great smile.gif
Yes, a blob in the middle.
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post #1037 of 8622
I lapp everything.... that way I KNOW for a fact that whatever heatsink I'm putting on my CPU/GPU or the actual heatspreaders of them, are perfectly flat and any higher than normal temp is either bad plaste/ bad application/ or a bad cooler...
post #1038 of 8622
all ready to go when my other stuff gets here! (hopefully tomorrow) Ended up painting it Matt Black thumb.gif

450

Now i just need to decide if lapping is worth it or not...
Edited by Darylrese - 4/25/12 at 1:48pm
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post #1039 of 8622
lapping is always worth it if you can live without the warranty
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post #1040 of 8622
i couldnt give a monkies about the warranty! It was only £40 and i probably wont be using it for much else. Its not worth enough to sell on second hand when im done with it
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