Game completely crashes my PC off when playing

I have had this issue for a while now, where after playing PoE 1 for about thirty minutes, my PC will completely shut off. I have uninstalled and reinstalled the game twice now and it hasn't helped. I run more intense games all the time with no issue. I have no clue what to do to fix this. I'd love to try this game out as I really like PoE 2 but for whatever reason it won't work on my computer without crashing and shutting down my computer.