Memory as in RAM, yeah? It's got one original 512 stick (six years old), and another 1gb that I bought about a year, maybe two years ago. I've got the other original 512 in a drawer. Should I just start swappin' 'em in and out to see if I can get the beeps to stop? I've got a hundred billion other 512 sticks floating around so if it's a RAM failure then (next to the hard drive) half a gig of RAM is the extent of my loss... I can live with that.
The beep - my roommate said it wasn't a beep because it didn't stop. Can't be a beep if it doesn't have an end, she said. It's just a long endless (it might end after thirty seconds, I killed the damn thing before it got that far because the sound was terrible) tone. Beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-*kill*. I'm 95% sure I still have every page of the original documentation in the same drawer as the old RAM, I will look for it.
WRT to the PSU, I still get every indication that it's preparing to boot. Fans turn on, LEDs light up, CD drive opens with the regular button. Then the "beep". I'm not expert enough to know whether any of that would happen with a crapped PSU.
I'm just as concerned about recovering my data as I am about reviving the machine. If I could take two not-dead hard drives out of the machine and leave it as a garbage box, I'd be happier than if I could replace the hard drives and swap a RAM stick or PSU and have a fully-functional machine with wiped disks.