Question about Apple 15" PowerBook G4 Aluminum 1.67 GHz LCD Display (p/n 1002587) (661-3749 1002587) Mac Notebook

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Problems with Apple 15" PowerBook G4 Aluminum 1.25GHz LCD Display Mac Notebook?

During boot-up, Apple logo heavily pixelated. After boot-up, display a riot of colors and lines with nothing readable. External monitor works well.

Thanks for any input!!

~ JOWhen my powerMac G4 boots all looks normal for about 30 seconds... both monitors... then the monitors go crazy ... both of them with lines. You cannot read anything after this happens on either monitor. Any ideas?

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  • 416 Answers

In first case probably monitor problem. Try to press it with finger to see if it solve the problem. If that helps you need to plase something between the monitor and monitor frame for pressure

In second case video card is faulty. Only way to fix it replace the video card. As temorary solution you can use your machine on eternal HDD mode.
Good Luck

Posted on Feb 13, 2009

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Try first reainstalling Mac os.

Posted on Feb 13, 2009

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  • Ginko
    Ginko Feb 13, 2009

    Try first reinstalling Mac OS, to ensure this is not a problem with video drivers.

    If you get the problem again , or if you get screen going crazy during installation then it is probably a bad LCD cable.


  • Ginko
    Ginko Feb 13, 2009

    As said, reinstall teh system first.

    I have to correcet my first comment, if you get the problem on the two different monitors, and if the problem is not the system, then it is a bad video adapter.


  • Ginko
    Ginko Feb 13, 2009

    Do the following:

    Reinstall the System first.

    If you still have the problem test differemt monitors with different cables.

    The most likely is that the video card is overheating and jams in 30 seconds.

    Replace the video card in this case.

    Apple 630-3102 PowerMac G3/G4 VGA/DVI AGP $35

    Apple Powermac G4 Video Card 630-3075 $20

    If you have a spare video card, use it to test, to ensure it is not the cpu overheating.

    The most likely is system problem or video card.



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The coonection on the(LCD AND LAPTOP IS BAD The wirng )You have to have it taken apart and fixed. I can do it if you live in California or ship it to me. But that is what the problem is.

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