Alrighty! STORY TIME!
Three days ago, the brand spanking new PC I just spent thousands of dollars building: shut off on me. Completely randomly, no errors or nothing. Just... off. I restarted, did some brief checks, and went about my day.
Yesterday, it did it again. No errors, no BSD, no outward signs of a problem: just OFF. It restarted fine though. Ran a system scan, did some research but came up with nothing actionable.
This morning: it did it TWICE! Within an hour. So now I absolutely need to do something about it and drop into troubleshooting mode: What's happened since build, what's changed?
-I bought and installed the deepcool fan hub. But that was like two weeks ago? Maybe it doesn't like being in the sys1 slot? I can disconnect it, maybe rewire it or just test without.
-I bought the wheeled cpu stand from ikea... but why would that change anything? Maybe it's a grounding problem? But that was also like a week or so ago, why would problems only start very recently and not then?
-We've had a LOT of power problems of late. Lots of general outtages, but I also blew the breaker my PC is on when we installed the air conditioners. Maybe the power supply is suffering?
Compounding the problem is that there is absolutely NO signs of a problem. No glitches, no lagging, no errors, nothing, nothing, nothing.
So I work from where I can. The computer is still off from the error. I pull the cord from the PSU, hit the PSU switch, and crack open the case. The only thing I can do at this point is experiment with the deepcool and see where that gets me. So I move the plug from Sys1 to Sys4, plug the PSU back in, flip the switch and hit the power button.
Nothing happens. I... I did turn the PSU back on, right? Double check that, and I did. I guess the PSU was the problem? But that's weird cause there was no indications of an error (other than the shut downs.) and corsair stuff is highly rated and durable. Maybe the power CORD is defective? I start running my hand up the cord to check for hot spots... Hey, why is the ******* cord half out of the surge protector socket?
I bet that stupid ginger brick has been bonking it during his nightly treat routine. The plug was far enough out that when I pushed it back in (despite the PC being off.) there was the spark of connection. Hit the power button and the computer boots right up.
I made sure the fans were all working (they were.) and ran another system scan. Now we just wait to see if it shuts off again, but it won't cause the plug is seated proper, and tonight when I shut down for bed, I'm going to move the plug to another spot on the surge protector so whiskey can't bonk his way to killing my computer.