I am currently running a GTX 760 and i5 4670K no overclock. I have 16gb of ddr3 1600hz RAM that I just installed. My motherboard is MSI z87 g45. My PSU is HX750 by Corsair.
I recently tried to upgrade to a Vega 56 and 16gb of ram, at first it didn't work but after fiddling around my computer started and I was able to install the drivers. All was working fine until I tried to play a game. After about 5-10min the computer straight up powered off, not blue screen just turned off and turn on again.
However I simply cannot find a fix to this issue. I don't know what is wrong, it works find on desktop but running a game makes it shut off.