Originally Posted by qiqi1021;15537764
Damn, you've got balls of steel OP.
When you removed the IHS was there any TIM between it and the core?
As for lapping the IHS, I don't think there's any point since the stock IHS is completely even and flat (at least on all the 460/560s I've see anyway). Pretty much no point unless you go right down to the copper.
Yes, there was thermal paste. Sadly I didn't get a pic... It was like stock paste, all dried and cracking.
The IHS is smooth but it can be smoother. A matte finish has tiny bubbles in the surface. Sanding it down achieves that mirror finish and eliminates those bubbles. The surface that makes contact from the IHS to the actual chip needs it bad! That coated surface is very rough, probably equatable to 1000grit sandpaper...
I posted my OCCT 100% results before and after. 60C max temp @ 100% GPU usage is pretty darn good... I could have never gotten close to that in original stock config. Usually around 72-75C stock...