Was playing fallout 4 a couple days ago. About 20 minutes in. The computer just shuts off. Like no power at all. I start up the computer again. Try fallout 4 again. It shuts off at the beginning video. WTF... I try Skyrim wondering if video card is busted. Skyrim runs perfectly fine. I startup Fallout 4 again. It runs. WTF...

Next day I try fallout and bout 20 minutes in power off again. Now I am assuming cooling issue and I am trying to see temps with programs. Cannot really tell.

So today I take apart my laptop and vacuum every cooling orifice out. Vacuum any dust looking crap I can see. There was dust in the fans. All clean. I run a memory test for a couple hours. Memory passes (it was brand new memory, thought maybe flaw in ram). Now I run fallout 4. Runs fine, zero issues for about an hour.

Me to myself: CLEAN YOUR DAMN COMPUTER MORE OFTEN! Okay...

In between I read about Fallout 4 causing system reboots and shutdowns due to loading and heating. Apparently something about Fallout 4 causes this more than other games. Wild... Pretty sure it was thermal shutdown protection going on.