With it not restarting, it sounds like a heat issues. Open it up and clean the fans. For a better result, open it and remove the logic board and clean out the heat sink vent ports and replace the thermal paste. Warning: this is a difficult and you really have to pay attention to get all the cable out from under the board when replacing it. Also ESD protocols must be followed.
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With it not restarting, it sounds like a heat issues. Open it up and clean the fans. For a better result, open it and remove the logic board and clean out the heat sink vent ports and replace the thermal paste. Warning: this is a difficult procedure and you really have to pay attention to get all the cable out from under the board when replacing it. I did one last week and had to take the logic board out twice due to a heat sensor cable getting under the board. I also take pictures as I go to augment the guides. Also ESD protocols must be followed.
Here's how to remove the board: [guide|231]
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Here's the guide on replacing thermal paste: http://www.ifixit.com/Guide/Repair/Installing-Thermal-Paste/744/1
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Here's the guide on replacing thermal paste: [guide|744]
With it not restarting, it sounds like a heat issues. Open it up and clean the fans. For a better result, open it and remove the logic board and clean out the heat sink vent ports and replace the thermal paste. Warning: this is a difficult and you really have to pay attention to get all the cable out from under the board when replacing it. Also ESD protocols must be followed.
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Here's how to remove the board: http://www.ifixit.com/Guide/Repair/Installing-PowerBook-G4-Aluminum-15-Inch-1-1-5-GHz-Logic-Board/231/1
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Here's how to remove the board: [guide|231]
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Here's the guide on replacing thermal paste: http://www.ifixit.com/Guide/Repair/Installing-Thermal-Paste/744/1
With it not restarting, it sounds like a heat issues. Open it up and clean the fans. For a better result, open it and remove the logic board and clean out the heat sink vent ports and replace the thermal paste. Warning: this is a difficult and you really have to pay attention to get all the cable out from under the board when replacing it. Also ESD protocols must be followed.
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Here's how to remove the board: http://www.ifixit.com/Guide/Repair/Installing-PowerBook-G4-Aluminum-15-Inch-1-1-5-GHz-Logic-Board/231/1
With it not restarting, it sounds like a heat issues. Open it up and clean the fans. For a better result, open it and remove the logic board and clean out the heat sink vent ports and replace the thermal paste. Warning: this is a difficult and you really have to pay attention to get all the cable out from under the board when replacing it. Also ESD protocols must be followed.