No power up...bad dc in but good battery?

If my Ibook G4 has a bad DC in board and I put a new fully charged battery in it will it power up?

I'm trying to determine if the DC board is the culprit or if it's more than that...should this method work?

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If you put a good, charged battery in, it should boot up with or without a good DC-IN board. To test the board, see if it will charge the battery up or start without a battery.

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Excellent! Thank you....

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Powers up with a new battery no problem. Nothing doing without the battery. Can I be sure it's the DC board or could there still be a problem post dc board, pre whatever else is before power switch/battery?

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I have a similar problem.

The battery fully charges, but the computer doesn't turn on.

Could this be the DC board?

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Does it work with the battery alone as Mayer stated in his answer?

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No it does not work.

The computer is completely "dead".

I tried pressing the on button for 10 seconds, but nothing happened.

If I remove the battery and connect the power supply, the ring turns to green. (Don't know if this helps the diagnostics).

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Rita, it would be best to create you own problem with all of the details Vs trying to carry this thread on with incorrect or conflicting info.

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joe will be eternally grateful.
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