iBook G4 turns off:::Any help?

Discussion in 'PowerPC Macs' started by In The Wind, Jan 5, 2011.

  1. In The Wind, Jan 5, 2011
    Last edited: Jan 5, 2011

    In The Wind macrumors newbie

    Jan 5, 2011

    Just purchased a used iBook G4, 1.42 ghz 14" notebook. AS IS, meaning broken.

    Thought it would be fun to troubleshoot it, since I already own one and have taken it apart.

    Here's what's wrong with it.

    I've gotten it to boot up. Curiously, it describes itself as a powerbook!?

    Unfortunately, I haven't gotten it to stay on for very long. *click* and it dies. I've gotten it to boot a few times, sometimes not, sometimes it only clicks and doesn't boot up. I don't know... I've gotten it to start up in target disk mode with no issues.

    FUrther issue with the computer: The trackpad doesn't work. I don't know how to trouble shoot that without replacing the topcase.

    Any ideas?

    Seems likely that it is a motherboard problem. How can I verify this?

    I've looked at some sites that document ibook mobo fixes involving reflowing the solder on one crucial chip. It just seems strange because if I hold down the chip and try to boot, it doesn't work any better.
  2. Strimkind macrumors member

    Jul 16, 2009
    Sounds definitely like a logic board issue. There is the possibility that it may have been due to liquid damage.

    I had an older iBook that did not recognize the trackpad, keyboard, airport slot, or the RAM slot. It would also not respond when rebooted. I assumed that water was introduced to it at some point in its life.

    My recommendations are to stop bothering fixing it and try and find a unit with a good board and a Bad LCD. Make one good unit out of 2 bad ones.
  3. In The Wind thread starter macrumors newbie

    Jan 5, 2011

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