One of my cards was running hot so I took it apart to see what was going on and discovered a crater maybe 2mm wide and maybe 50-100 microns deep in both the heatsink and the GPU. It's like some tiny people let off a tiny stick of dynamite and made this not-so-tiny crater.
Card works totally fine except for getting hot. How to fix? Sandpaper?
I seen like that one of asus strix. i fixed with mini grinder.carefully grind it so gpu and heatsink will attach good.