Not impossible a PRAM Battery can go dead that soon, was it without AC power for any length of time?
How to reset the SMU/PMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005) ...
Does it boot into Open Firmware with CMD+Option+o+f ?
reset-nvram (press Enter)
set-defaults (press Enter)
reset-all (press Enter)
hey Aqua. Thanks for always offering to help.
So here is where I am with this.
It seems that the keyboard isn't communicating with the G5 either.
When I boot up the computer, I push the eject button, but the door to the super drive won't open.
I was going to try and boot up from the startup disk, but I can't open the drive door. The same thing always happens. Fans full speed after 30 secs, and no monitor.
I also can't zap the PRAM. I hold down the apple+option+P+R, but i don't hear the "chime"(is that what we call it?). And then again the fans go full speed after 30 seconds, and with no monitor.
Same thing when I try your suggestion of trying to boot into open firmware.
The computer was not without AC power for any length of time.
So no monitor, and keyboard is unresponsive. Even to open the dvd drive door doesn't work.(is there a way to get that drive door open manually?)
I appreciate any further suggestions.
I do believe that the PRAM battery can go dead that quick, but it seems odd.
Maybe I'll jsut order one and try it. It is certainly cheap enough!