Earlier I was playing Overwatch with a friend when suddenly my monitor turned off. My friend on Discord could still hear me and I could talk but he said I left the match I was in. I went on again multiple times and it would happen more especially if I alt tab. I went on CSGO and played a match of deathmatch perfectly fine being able to alt tab with no issue. Same for NieR: Automata and some other not as graphically intensive games. Later I booted up DOOM and the same thing happened when the monitor went black and I had to do a restart. I am thinking it is either the PSU or the GPU. I just got my 1070 not too long ago in an RMA from EVGA as my old 1070 had a Video TDR Failure. My power supply is the Corsair CX 750M and my GPU is the EVGA 1070 Superlocked. I am leaning towards the power supply especially as I hear a lot of negative things about the model I have however I am not completely sure what it is.