I have had the Radeon R9 290x for about 4 months now and I have never had a problem with it. Yesterday I played skyrim remastered for a little while with no problems. I walked away for about 40 minutes and my computer had a black screen but sound was still playing. I would press escape and hear the pause menu come on but still no screen would appear. I would press control, alt , and delete and still nothing would happen. I held down power and forced the system off. When I turned it back on the next day my graphics card was no longer recognizable. The fans on the card are activated and everything, my computer just won't recognize the graphics card at all. I tried to use AMD's autodetect and that did not prove to be successful either. Please help!