Problem with Stopping a Crashed Computer
Problem with Stopping a Crashed Computer
Yeah, I believe the problem was my RAM. I removed three of the other sticks as suggested in another comment (I wasn't sure why I hadn't considered testing them one by one before...), and I haven't experienced any issues yet.
I added two sticks of the same model recently. I knew they should come in pairs, but it didn't occur to me that having two different pairs would be a problem. I plan to test further at home tonight, but this seems like the most likely cause now that you both mentioned it.
Thank you very much for your help! I'll share an update if I find anything else, but I'm pretty sure it was the RAM issue.