So I've been having this problem for a while, started with an AMD driver update, PC just restarts when I'm in game, no BSOD or anything, just restart and AMD settings go back to default. Switching to fullscreen instead of borderless mode made the problem disappear for a while, but now it's back when I play Ashes Escalation. Thing is when I run either Prime or Furmark it's stable, but when I run both it crashes almost instantly. Could it be bad PSU? It's about 5 years old now, but it should be an overkill for my system: FXemail@example.com, 8GB RAM, RX 470 4GB Sapphire Nitro. PSU is Thermaltake SPS-630M (49A single rail).
I'd like to blame AMD but really... What the hell is going on?