Have a GTS in my other system which I took the heatsink off to put some ASII on. Anyway is it best to put a thin layer just like you do a CPU core? Oh yeah and what exactly is the gold colored thing in the top corner of the GPU is it real important? Because I got a little ASII on it and when I scrubbed it to get the ASII off it kind of rubbed the sides off. But there is still plent of gold colored like stuff in the middle.Either way it seems to be working good.