PowerBook G4 Aluminum laptops with 12 inch displays

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Does command+option+P+R not work with the 12'

Does powering on

while holding down


and waiting for the second chime

not work for a 12" Powerbook G4

I found that sequence on Mac support pages

I do know that model does not have a separate PRAM battery



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1 Answer

Chosen Solution

Try resetting the PRAM through Open Firmware:

Boot Mac while simultaneously holding CommandOption+OF

When at the command prompt type the following:

reset-nvram <Enter>

reset-all <Enter>

The Mac should now reboot into OSX with a reset PRAM.

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I know I can do that

but I want to know if the

Command+Option+P+R actually does work




I just tried it on a 12" G4 1.33 and I could zap the PRAM with keyboard commands. Also tried it on a 12" iBook 700 MHz and it works.





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