I installed a PC Power & Cooling Silencer 470 on atlas today. It has been turning itself off a lot recently, and I'm pretty sure that it was a power supply issue. This supply has a lot of SATA power connectors and a 24-pin motherboard connector, so I should be able to use it on my next machine, which is going to be going in a much quieter direction than the ones I've built so far.
Today was just weird. I was so tired and out of it yesterday that I was determined to sleep. Earplugs and eyeshades determined. Anyway, I guess it worked. I've been reading my LISP and AI books without feeling like the information is leaking out as soon as it comes in. But my schedule is extra wrong now.