:rolleyes: once again... POWERBOOK G4 STARTUP PROBLEMS!

Discussion in 'PowerPC Macs' started by TommyLee, Jun 6, 2008.

  1. macrumors regular

    Joined:
    Jan 23, 2004
    Location:
    New Orleans
    #1
    I shut it down last night and tried to turn it on today, but to no avail.
    The only signs of life I get is the hard drive quitely hums when I start it up and the green caps lock light works.

    I get no chime, no screen activity and as far as I can hear with my ear pressed up to the case, no hard drive activity except for the platter spinning. (no clicks or ticks) :confused:

    In an attempt to fix this problem i have performed the following steps
    -reset power PRAM, and NVRAM
    -reset Power manager
    -disconnected all usb/firewire/ext devices
    -tried starting in target disk mode
    -tried booting from CD.

    help me obi-won, you're my only hope.
     
  2. macrumors 68000

    iToaster

    Joined:
    May 3, 2007
    Location:
    In front of my MacBook Pro
    #2
    If it doesn't pass the POS test, power on self test (piece of ;) test)... startup chime indicates passed, it looks like you have some logic board problems.
     
  3. macrumors G5

    Consultant

    Joined:
    Jun 27, 2007
    #3
    Turn on, hold option, put OSX DVD in (if you have DVD drive), what happens?

    I was going to say HD failure. But if even optical cannot boot, then it might be logic board?
     
  4. thread starter macrumors regular

    Joined:
    Jan 23, 2004
    Location:
    New Orleans
    #4
    I am also guessing logic board, because it's showing all the signs that the service manual says, but I'm scared of buying a new one for nothing.

    Other than the logic board, what could it be and how do I determine what it is?
     
  5. thread starter macrumors regular

    Joined:
    Jan 23, 2004
    Location:
    New Orleans
  6. macrumors 603

    iSaint

    Joined:
    May 26, 2004
    Location:
    South Mississippi y'all, near the water!
    #6
    Apple Store Genius Bar. They'll let you know what it is, and how much to replace it. My iBook's logic board failed. for $299 I got a new logic board, hard drive, and (after first returned it wouldn't find the hard drive) a new battery to boot!

    Mac Service
    seems to be a reliable source as well. I'm thinking of upgrading my harddrive with them.
     
  7. thread starter macrumors regular

    Joined:
    Jan 23, 2004
    Location:
    New Orleans
    #7
    i have never met a "genius" at the apple bar! :p

    hey, where do i buy a cheap logic board?
     

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