Dylan
Banned
Done all of this bud, it's still hitting high temps on RUst.Make sure the fans are actually running and the cable isn't preventing it from spinning
Completely remove the GPU and inspect to see if the fan blades are damaged
Remove the heat sink/fan assembly and dust it with compressed air thoroughly
Inspect the heat sink to see if there is too much/too little/bad application of thermal paste and if so remove it and apply some decent compound ie Arctic Cooling MX-2 - Thermal paste [Plenty of guides online to show you how if you're unsure]
If none of that works then your GPU is fluxed.