I posted this before and then it took awhile for my pc to shut down so I didn't get the info right away so I'm reposting this with the links.
My computer has been shutting down for a little while now when playing games. I was fixing this problem (lazily) by opening up the side of my computer and running a box fan in with msi afterburner open and cranking the fans somewhat hard. What was weird to me is that my gpu wasn't getting overly hot, the hottest I saw it was 76c. My computer was very very dusty and I was planning on taking the whole thing apart and doing a thorough dusting of it for awhile and I finally did that a couple days ago when it crashed right away. It's free of dust now and was working well with my gpu staying in the mid 50's with no extra fan running on it. It just crashed after a couple days of it working fine with no dust and now I don't know what to do. I just ran a check on my ram and that came back with no problems. Does anyone have any ideas on what this could be?