So I need another opinion. I'm not sure if either my PSU is starting to die or doesn't have enough amps to power my card. Now my system has been locking up consistently after I play a game for at least 30 minutes to an hour. I originally had a GTX 260, when it died suddenly. Funnily enough, it was around the time the card-frying 320.18 driver came out.... Well, fast forward to now when I receive a new card from EVGA (they upped me to a GTX 275) and now it just continues to lock up. Now I DID have this problem with my GTX 260, and that also had an artifacting issue. The latter was solved with a good clean out of the card. The lock ups always happened randomly, only in games, and most of time it stopped/started again when a new driver came out.
I wish I could gather more information, but these lock ups don't allow the system to create any form of error report or anything. All the event viewer shows is that there was a hard reset.