I have XFX ATI radeon 6670 1 GB DDR5... The card was fine for two years.. but few days ago the display just went off.. it was ok then I turned off the computer.. after about 1 hour I turned on the computer.. but there is no display, computer was running.. then I plugged the monitor cable to motherboard's plug then the display came.. I tested the graphics card with other computer but same thing happened.. when opened the case I found that after starting the pc, gfx card's fan is spinning and I heard 2 beeps, but there is no display.. the card requires no extra power from PSU, it consumes power through PCIE x16 slot.. Is my graphics card dead? Or there is some minor problem I can fix.. NOTE: I have BIOS setting with priority to pcie slot 1st..