The other day when I turned on my new PC, immediately the fans on my Gigabyte GTX 770 went full blast which they never do and nothing displayed on the screen. The system wouldn't turn off by the button either, so I had to switch off the PSU. This happened many times. I fiddled with the internals and finally got it to boot, and at someone's suggestion, reverted back from the latest Nvidia beta drivers to the latest stable drivers (331.82) and it didn't happen again, so I was happy. However, today, I was using the system and all was well, and I had to put it into sleep mode which I have done many times before, but when I woke it up maybe 15 minutes later the fans kicked on full blast and all the other issues happened again. Had to fiddle with the PCIE power connectors again to get the system to boot, and now it is running stable again. My question is, WHAT IS GOING ON??? I'm seriously confused and can't find a solution anywhere, and want to find out if I need to send this GPU back or if there is a fix. Thanks!