Re: My GTX 480 died -- A reliability study.
I have another GTX 480 that showed some stability problems. After running some simple 3D test-app all night long, it eventually hung the computer; The screen is frozen (showing the 3D app's output) and the mouse does not move. The card recovered after a reboot, though. My first card did not have that chance and it never recovered the hang.
I would be interested to see other users run some 3D demo application for 12-20 hours non-stop to see if their graphics card can withstand it. Worst case, the card will die, as my first card did. But if the card is flaky, better find it right now anyway, ... while it is on warranty. Note that to be a good test, you must disable "vsync" so that the card is always busy.