Amd Radeon 6870 Crashing When Opening Game?

So im having the strangest issue with my graphics card. I had it installed and fine for about a year now and suddenly it started having issues with Borderlands 2 where the card will literally just cut off right after the game add's and just before i can select to load game. The strange thing is the sound from the game will still play so i know the system itself is still running. I tested the temp's on gpu and cpu both of which are under 70c, i tried reinstalling windows and immediately installing amd drivers and running a game, it does the same thing.