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Thread: One Dead PowerBook G4

  1. #1
    Join Date
    May 2003
    Location
    Concord, NH Earth
    Posts
    16

    Default One Dead PowerBook G4

    Went to turn on my powerbook last night - dead. No friendly mac chime. It's not used on a daily basis, but I was using it a few days ago and it worked fine. It's the 667Mhz model with 768MB RAM.

    Did some research thru the discussions on the Apple site and tried resetting the power management button under the keyboard. Still nothing.
    Any suggestions?

    Thanks.
    Stephen

  2. #2
    Join Date
    Aug 2003
    Location
    Under the Midnight Sun
    Posts
    656

    Default A couple thoughts...

    I know that a dead / or dying main Li battery will cause havoc on the PB's, have you tried removing the main battery and then resetting PRAM?

    Also, might want to look up pbfixit.com to see how tough it is to replace the nvram battery (they do go bad after 3 years or so). This would also cause a PB to not start.

    Reset the physical ram in the slots might also help... can you check power output of the Power Adapter with a voltmeter?
    MacBook Pro Uni 2.4GHz with express card slot

    iMac G5

  3. #3
    Join Date
    May 2003
    Location
    Concord, NH Earth
    Posts
    16

    Default

    thanks for the suggestions - I'll look up how hard it is to change the battery. With the laptop I don't know my way around too well on the inside. May end up taking it in for service.

    stephen

  4. #4
    Join Date
    Feb 2001
    Location
    on the landline, Mr. Smith
    Posts
    7,787

    Default

    A couple more thoughts....

    ibooks don't have a seperate NVRAM battery, so it is at least possible yours 'book doesn't either. Have seen a couple ibook owners tear their babies apart looking for something that isn't there. Nobody wants to do that.

    Have seen several machines with the same symptom that were revived by a PMU button reset. It has worked for me on several G4 towers, a G4 imac, etc. If you do crack it open, it would be one of the first things I would try.

    Luck.
    "Imagine if every Thursday your shoes exploded if you tied them the usual way. This happens to us all the time with computers, and nobody thinks of complaining." -- Jef Raskin

  5. #5
    Join Date
    May 2003
    Location
    Concord, NH Earth
    Posts
    16

    Default

    How do you reset the PMU button on the G4 Powerbook?

  6. #6
    Join Date
    May 2003
    Location
    Concord, NH Earth
    Posts
    16

    Default

    scratch my last post - already did that

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