![]() Warning: Resetting the power manager will permanently remove a RAM disk, if present, and all of its contents. See procedures under the “Resetting the Power Manager Unit (PMU)” heading in the Hardware Troubleshooting Tools and Tips section. ![]() Try powering up without the battery installed (only works with 65W power adapter).ĥ. PowerBook G4 17-inch series, it may not provide sufficient power during some activities and power may be drawn temporarily from the battery.Ĥ. ![]() Although previous 45W power adapters (see Knowledge Base article 88231 PowerBook and iBook: Apple Power Adapter) are plug compatible with the The adapters can be identified by 65W in the name and markings, and the metal securing-stud on the plug connector. Important: The Apple 65W Portable Power Adapter is highly recommended to be used with the PowerBook G4 17-inch series computers. The DC plug should light up, if not, replace DC-in board. Connect a known-good Apple 65W Portable Power Adapter and power cord or plug to a known-good power outlet make sure the DC plug is firmly inserted. At least one LED must light solid (not flashing).ģ. Check that the battery has enough charge to start the computer by pressing the button next to the LEDs on the battery. Remove any connected peripherals and eject any PC card.Ģ. The computer will not power on (no fan movement, hard drive spin up and display is not lit)ġ. Birdinlay, besides the answer from try following the Apple troubleshooting steps:
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