freezes

Hey guys, I've been having a problem lately where I'll be playing video games and suddenly my display will go into standby mode as if the computer had been shut off. All the lights and fans still whirr in the computer itself. If I have headphones plugged in at the time, I will hear a rapid...

I had to resort to my old 2 GTX 560 Ti's as my GTX 780 has failed and must be returned. At first, Sli had not worked, but after several updates and installations on my Asus P8Z77-V motherboard fixed the problem, but only temporarily. I come back the next day to realize that Sli had stopped...