I guess I’ll get a new power supply over the weekend. Seeing as this one already wasn’t OEM, I’ll hope that I’ll get away with something generic. This machine is not new (nor are the RAM or the video card), so maybe cleaning everything while I have it open would be a good idea. Thanks.
OK, wow. I checked around a little bit, and the 25A@5V PSU seems to have gone the way of the dodo. If I can’t get a stable system with a 20A@5V PSU, this project may just have increased in size quite significantly.