Apple's line of PowerBook laptops was intended for the professional and power users. The PowerBook line includes the PowerBook 100, Duo, 500, and 5300 Series; the PowerBook 1400, 2400, 3400; the PowerBook G3, G4 Titanium, and G4 Aluminum.

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PowerBook requires PMU reboot EVERY TIME it's powered up

I have an old 15" PowerBook G4 which I'm trying to get fixed up before I sell it. The problem basically consists of it having little or no battery power, and requiring a 'SCOP' (Shift, Ctrl, Option, Power) to reboot the PMU every time I want to run it from the AC adapter. How can I fix this? Is it a simple case of replacing the battery? Any advice would be much appreciated and I can elaborate on the problem if needs be.

- Rob

*Edit* - Someone on another forum has suggested replacing the PRAM battery... think that might help?

Answered! View the answer I have this problem too

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If you remove the battery, does the problem go away, i.e. with the battery removed, and the laptop connected to AC power, can you power on the laptop normally? If so, I think that answers the question.

Is your PowerBook an aluminum (silver keys) or a Titanium (black keys)?

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Rob will be eternally grateful.
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