I have been having this issue since I upgraded my GPU and PSU, where while gaming, I'll get a random black screen or a full red screen or full purple screen. When I get a coloured screen, I have to restart my PC, if I get a black screen, I can't do anything except Ctrl + Alt + Delete and close the game thru task manager, because the game dosen't stop responding or freezes, but I can't tab back in, when I try to tab back in, I just get a small black bar in top left coner and I'll hear live sounds but nothing else, when I close the game thru task manager, I can re-open it and carry on playing, but all my monitoring software will say 0 to everything GPU related, temp, clocks ect, and when I go into Afterburner, it will say "GPU1 lost connection" or something like that, but when I re-open a game, I expierence no performance drop and I have to restart my PC to see the temps ect again. This happened after I upgraded my GPU and PSU, I upgraded my GPU from my old 750ti to GTX 670 so I can play in sorround mode and I had to upgrade my PSU from EVGA 430W to Corsair CX600 since I needed one more PCIe power connector which my old PSU didn't have. I seem to get a black screen, once an hour which is very annoying and a red/purple screen maybe once a day, sometimes once every two days.My temps are fine, my PC is water cooled and my CPU temps are around 47c and my GPU is around 42c. My specs are;
i5 2500
EVGA GTX 670
Gigabyte GA-H61-DS2 Rev 2.0 Mobo
Corsair CX600 PSU
Kingston HyperX Fury 2x4GB DDR3 RAM
Drevo X1 120GB SSD
Toshiba 1TB HDD
PC water cooled by 4W pump, 1 240mm rad and 1 120mm rad with 6 Corsair SP120 fans in pull/pill config.
i5 2500
EVGA GTX 670
Gigabyte GA-H61-DS2 Rev 2.0 Mobo
Corsair CX600 PSU
Kingston HyperX Fury 2x4GB DDR3 RAM
Drevo X1 120GB SSD
Toshiba 1TB HDD
PC water cooled by 4W pump, 1 240mm rad and 1 120mm rad with 6 Corsair SP120 fans in pull/pill config.