Question PC no signal while gaming

[Lrepo_]

Hey everyone so i got a bit of a issue that suddenly appeared couple days ago.
So basically my monitors go from normal to no signal when playing medium-heavy games (Witcher 3, Dead by daylight)
It doesn't crash when i play light games like minecraft or league of legends.
I tried updating my gpu and cpu drivers and even installing the newest version of windows and then even reset my pc but to no avail. And if it crashes it crashes a random time between 2 min and 30 min i checked my temperatures on my gpu and cpu and the usage but nothing out of the ordinary gpu 60-70C and cpu 70-80C and normal usages.
I reinstalled my gpu and cmos battery nothing is overclocked.
I have 2 monitors that both shut down at the same time so probably not the monitors fault. I never kicked the pc or damaged something too my knowledge this all happened randomly.
Please help me because this is really frustrating.
Any help is much appreciated.
PC SPECS:
GPU: Amd vega 56
CPU: Amd ryzen 5 2600
MOBO: Asrock A320M-DVS R3.0
RAM: Corsair DDR4 Vengeance LPX 2x8GB 3000
PSU: Corsair PSU VS Series VS650

PC is a year old and never encountered such problems

 

[Lutfij]

Have you ruled out the PSU being the culprit by borrowing a reliably built unit from a friend or neighbor? The VS series isn't exactly what you would call a reliable unit. To add, that Vega card you have does draw quite some power.