Q: My Mac G4 came unplugged while running and now when I start it up all I get is a continuous reboot loop.

Are you using an Apple keyboard or something else. It is rather common for non-Apple boards, especially those pulled from a PC, to not respond to the traditional Apple startup key command combos.

My keyboard is an Apple bought about 1 year ago. It has worked perfectly in the past.

Take the computer off wall power again then press and hold the power button for about 20 seconds. Then restore power and try a normal start. That worked for me when I had a similar failure to start with my G4 MDD.

Just tried this and no go. It is still looping a reboot.

I have never replaced the "PRAM" battery. Do I need to get the computer started before I replace it? And, will this help with my problem?

It will boot in single user mode but before it finishes putting everything on screen it reboots again. Can't get to the prompt.

The last line of code is:

syncing disks... Killing all processes

Then a running list before the reboot occurs. A quick finger on the camera of my iPad caught this occurrence.

For some reason it won't let me insert a picture. I can select a file but not insert it.

Ah. Should have tried that! I caught this shot just before in went into a quick scrolling list and then rebooted.

I have no external drives hooked up. I don't have the OSX install disc as I bought the tower used from a local print shop about 3 years ago.

PCI card? not sure... here is a pic of the interior. all slots are full.

Wow. How did I make that mistake...(it even says G5 on the inside rather large...) I checked the serial number and It is a Power Mac G5 from late 2005 with a valid purchase date. Does this make a big difference in solving my reboot loop problem?

-chuck