My card clock speeds are 500/900 so I guess you mean slow it down to 475/875. What temperature would be considered too high? Also, how do you clean the registry? I also don't get why it used to work fine but is just now messing up.
I also noticed that the fan wasn't going loud when I was playing. RicoDerenzo said make sure it was always on but how do I do that? I couldn't find it.