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My old mac duo won't boot up. why?

My mac duo won't boot up

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  • Damien Gole
    Damien Gole May 11, 2010

    Hi this can come from a lot of things, software or hardware. To get a good answer, please indicate precisely what you see and hear at startup.

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  • 85 Answers

That's old. Besides the main battery, there is likely a silver oxide disk (newer) or 1/2 AA battery (older) for the PRAM and is needed for startup, IIRC. If the battery does not have the full 1.5 or 3.0V, your machine will not work. Another sign of a bad backup battery is that the clock forgets the time when unplugged. -Ken

Posted on Jul 29, 2009

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Posted on Jan 02, 2017

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