Power Mac G4 Tower Shut Itself Down, Won't Start Now
Power Macintosh G4 500 DP (Gigabit) M7893LL/A*
Wouldn't power up a couple of months ago. Randomly one day after several weeks I hit the power button and it was fine. Have used it 4-5 times over a couple of weeks since then. Tonight after about 3-4 minutes it shut down as if the power cord had been pulled. It will not power up. I was using a browser when it happened. I know the AC cord is live, I can hear the small electrical click when the contacts make a connection with the machine. The PRAM(?) battery reads 3.7v with a meter. I removed it for 10 minutes once and then an hour once, following reset procedure to no avail. All peripherals were disconnected during attempted reset. I do not see any lit LEDs on the motherboard although I don't recall ever seeing one but I have read that maybe there is one. (A few years ago I replaced the power supply after the tower would not power up following a neighborhood power outage due to lightning. We seem to have several outages each year in this area. Just background info, don't know if there's any relation to current problem.)