RMA it to EVGA. If you look at the inside cover of the box there's a sticker that states faulty cards should be shipped back to them directly. In other news, I managed to push my 670 to +60 core +20 memory with 145% power target. Card likes to boost to 1289, and settles out at 1275 when it hits 80c. Saw it peak at 82c and hit over 9400 on 3Dmark11. During the Heaven benchmark there were a couple of flashes of artifacting so I'm gonna lower it down a tad and see how it goes.