I've been helping someone with a PowerBook G4 550 and am beginning to think the logic board or hard drive might be toast. The symptoms:
- OS X Jaguar was running very, very, very slowly. I ran Disk Warrior and it turns out the drive was severely fragmented. DW sped things up and we were looking good.
- Next step was to upgrade to Panther. Problem is the hard drive would not appear. I then tried DW another time, but once again, no hard drive to service.
- Restar the machine and it just hangs on a gray sceen. Nada.
- Zap PRAM...nope, no dice.
- Insert Jaguar CD again, nothing. Still a gray screen.
- When he brought the machine to me the battery wouldn't charge over 2% -- that's still the case now.
Anyone have thoughts? Bad RAM seems unlikely.
Thanks.