Black screens when playing games, pc does not shut down completey, monitor just loses signal

hedzerr

Reputable
Jun 7, 2015
29
0
4,530
So when im playing games my PC will go on a black screen, continue to play sound for a few seconds, and then just stops doing anything, fans keep spinning, pc leds stay on, but the monitor doesnt get a signal. I get this in world of tanks and AC Unity, I get it when CPU is at 55C and GPU is at 64C. I run windows 8.1 Pro, an i5 4460k, MSI Z97 PC Mate, CM G650M, MSI GTX 750 Ti ( Factory overclocked I think) a 128gb ssd and a 500 gb hdd.
So when i turn the power slider in MSI afterburner down to about 80% it still happens, but now instead of after a minute it will tak an hour, I built the system two days ago.