I bought the card a few weeks ago, and everything worked flawlessly and even the load temperature was in the 40s. Ran very cool, so I OCed the stock speeds to 623/1580mhz, and the temperature didn't rise too much, to low 50s and was cool to the touch.
However since yesterday I started to get random artefacts in game, and after a while the monitor would go black, while the PC and sound would still be running. After a restart, I changed speeds back to stock and the temperature fell back to the 40s again. Even running stock now, I still get artefacts in game and just had my screen blacked out while playing DOD: source.
So, is my Gfx card dying? Can I prevent further damage? I'll RMA it soon probably. Only had it for a few weeks.