This is a month old, but I figured I would tell you my experience. I was having heat issues too and ended up using Shin-etzu on the GPU and it brought temps down 10C..instantly. I wasn't running 100C though, and I never dropped mine, but it was so damn easy to do, that I couldn't ever imagine sending in a card for that. I used to think you had all the tiny screws around the shroud to remove, but it's just the 4 big screws on the bottom. One of the easiest jobs I've done on a computer.