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fletcherism
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Boots from battery, not from power cord

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I rescued the machine in question from being tossed in a dumpster. It will power up if I charge its battery in my own 17" PowerBook first. But it will not start up without the battery when I plug the power cord in, nor will it charge the battery. The power adapter I tried is the original that came with my (identical model) 17" PowerBook. I'm thinking the DC-in board needs replacing.

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Kyle Wiens

That is what I would recommend trying first.

Matt Barnes,

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mayer
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That's a very good guess. I'd do it.

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Chris Green
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The DC/In Board is a good place to start, but what power adapter do you have? is it a 65W or a 45W, if it's a 45W, the PowerBook can only charge off of it, and not actually run, the 65W can run, and charge at the same time.

The adapter is 65W. It came with my 17" PowerBook G4 1.67 GHz low-res, which is the exact same as the one that I salvaged. The salvaged PowerBook neither powers up nor charges with the power adapter. Nothing happens at all. Only an externally-charged battery brings it to life. Which, frankly, surprised me.

fletcherism,

You could check the connections to the DC-In board, and if that doesn't work, your best bet would be to replace it, if that doesn't do it, then the logic board, or battery might be defective.

Chris Green,

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rab777hp
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I concur with the others here, this is the part you need.

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