Hi guys,
I have been experiencing the same issue. Here's my story:
I've been playing POE II as a Druid character when she reached level 18 and my computer started shutting down every time I loaded my most recent save.
About 20 attempts to identify the possible cause of the issue gave me some clues that lead to nowhere. Basically, shutdowns happen when there is a special effect as in when your character restores a pillar in the game.
I didn't have any changes to hardware. As for the software part ... maybe new NVIDIA driver.
HW Monitor shows no signs of overheating. I can play Skyrim/Fallout 4 on max settings.
Date of occurrence is somewhere in October 2018.
Also, guess what!
I started feeling nostalgia and thought that POE 1 would be a good idea to play.
The game did exactly the same thing, i.e. shut down my computer during Act 1 - Introduction. My PC shut itself exactly at the beginning after we kick some human enemies and main story starts. I was able to finish the game about 15 months before this post on the same machine.
As a result, I am not sure what I can do... There seem to be no debugging features, nor meaningful log output. Event Viewer doesn't show sh*t.
Does anyone do similar game dev and tell wtf is going on?
My machine is AMD FX with a NVIDIA GPU.