12" PowerBook G4 won't boot - USB problems?

Discussion in 'PowerPC Macs' started by bmalkevitch, Feb 15, 2009.

  1. bmalkevitch macrumors newbie

    Feb 15, 2009
    Today, my 12" PowerBook G4 (from around 2005) hung (system froze, clock stopped advancing). I restarted and, after the initial Leopard "Apple icon" startup screen showed for a minute, it just powered back off without another word.

    I started up in verbose mode and, after a minute of normal procedures, I got a line which reads something like this:

    "USBF: 25.10 OHCIRootHubPower Powerbit not sticking. retrying..."

    it flashes on the screen 20 times and then the computer shuts itself off.

    I can't find any information about this but it does seem to be USB related and, when the initial problem happened, I was charging my digital camera via one of the USB ports.

    What do people think? Is something in the circuitry fried? Might the repair be cheap or costly?

    Lastly, I can get the computer to boot in single-user mode without any problems.

    Thanks for any help...e-mail replies to bmalkevitch@yahoo.com also welcome!


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