The following is the procedure for resetting the PMU on the PowerBook G4 17": If the computer is on, turn it off. Hello BD & Jan - thx so much for the feedback; my PowerBook G4 is maxxed-out at OS 10.4.x, so I'll see if I can find a usb wi-fi that is backwards compat w that. I popped my OS 9 CD in the cdrom drive and cannot get to any screen where it allows me to boot from the CD. I have a PowerBook G4 that is about 3 1/2 years old - my first Mac ever, I got it for college. is there any way to restore it without them? I am wanting to donate or sell my PowerMac G4 and Powerbook G4 … I don't have the system password either. i would like to sell it on craigslist and don't want any of my personal info left on the Hard Drive. PowerBook G4 (15-inch FW 800, 15-inch 1.5/1.33GHz) PowerBook G4 (17-inch, 17-inch 1.33GHz, 17-inch 1.5GHz) If the computer is on, turn it off. i have a powerbook that i am selling and i want to restore it, but i don't have the restore cd's. how do i restore a powerbook g4 without the restore cd? And an install-restore or retail Leopard 10.5 DVD (not one from a different model. thank you! I have recently found my old iBook g4 and managed to get it started. how do i reset my imac G4 back to factory settings with out the "restore" CD? I think it has MAC OSX installed and the previous owner may have had some security measures installed. HP Notebook PCs - Using System Recovery, Factory Reset and Minimized Image Recovery Options This document is for HP Notebook PCs with Windows 7 and Vista . thx again, feel free to followup again if u have further ideas or come across a specific device that you think might work - meanwhile I will ck the ones you rec'ed. Hi everyone. Kyle Performing a power reset might fix conditions such as Windows not responding, a blank display, software freezing, keyboard stops responding, or other external devices locking up. i read somewhere that you could restore it somehow during boot up, but i dont remember how it said to do it. The problem is its running really slow so i'm thinking that if I format the hard drive and restore the factory settings (I don't need any of the information on it) that this would help. Do not press the fn (Function) key while using this combination of keystrokes. I bought a PowerBook G4 from an individual without the install discs. However, now that it has been so many years I feel like I want to restore it to factory settings, essentially I want to make it like I just opened … Show More. My G4 Powerbook doesn’t want to boot. Reset my mac powerbook G4 back to factory settings no disk [Closed] Report. or one that is grey from any other version build except an identical PowerBook) is the recommended route to be able to run the Disk Utility, and perform all other. kinds of functions, such as reformat a replacement hard drive, and so on. I am wanting to use it for Internet browsing and email only. I need to delete the previous owner's info and set it up for me. Reset the power manager by simultaneously pressing and then releasing Shift-Control-Option-Power on the keyboard.