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My mac wont power on for no particular reason. it has a fully charged new battery. Power cord has a green light. Nothing has happened to it since I shut it down a few weeks ago. its just been on my desk undisturbed not in the sun hasnt gotten wet. can anyone help?
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A common cause in this series is a dead or weak PRAM battery. I would replace it as the first thing. MacBook Pro 15" Core Duo Model A1150 PRAM Battery Replacement and heres the needed part: MacBook Pro 15" (Model A1150) PRAM Battery
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Try to remove battery, press and hold the power button for 15 seconds, reinstall battery, retry starting your mac..wish you luck.
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