Last night I was playing Borderlands 2 that came with my new (3 weeks old) EVGA GTX660 TI SC, when the game suddenly freezes, green/pink lines appear on screen, audio messing up followed by only pink/black shades on my screen. Then the whole pc crashes. It was late so I didn't have much time to check so I went to bed. Today when I turned on my PC after the Asrock message there were these bright red boxes scattered around the black screen. Then it switches to the "Windows Starting" screen and it had a bunch of vertical green artifacts everywhere. When it finished I had a BSOD saying it couldnt recover video driver and something about nvlddmkm.sys. I'll attach some pictures if I can. Then I tried using windows repair and the System Recovery only to meet a memory error. Then I manage to boot into safe mode where the colors where completely messed up. I reinstalled Video Driver, uninstalled via Device Manager, nothing helped. I tried to switch back to my old Palit GTX460 SE but the PC wouldnt even start, just a loop between on, off, on off, on off etc.
What could it be? I think it could be my 550watt PSU failing or just the GPU being messed up.
OS: Windows 7 Ultimate 64-bit Genuine
Ram: Kingston 8GB (2 4gb sticks) DDr3 1333MHZ
GPU: EVGA GTX660 TI Superclocked 2 GB and other card Palit GTX460SE 1GB
CPU: Intel Core 2 Quad Q9505 2.8GHZ no overclock and stock cooler
Motherboard: Asrock P43 something
PSU: Rasurbo Silwnt & Case DLP55.1 550Watt