Power Mac G4 Manual

  

Internally all G4 AGPs have four memory sockets (black in line sockets - see picture) towards the top of the case. The PowerMac G4 PCI Graphics also have four RAM slots, but the audio ports on the back of the machine are aligned horizontally. Graphite coloured PowerMac G4s later than the Gigabit Ethernet range have only three RAM slots. We wish to thank you for purchasing the PowerForce G4 upgrade card for your PowerMac G4 computer. The PowerLogix PowerForce G4 is a PowerPCTM processor card that will enable your Power Mac G4 to run at maximum speed with no compromises or permanent modiļ¬cations. This manual provides all the information you need to install the card.

Hi, Gerald -
Welcome to Apple's Discussions.
If your machine is an old (original series) G4s, then it has an eject button on the front of the external (bezel) door for the CD drive.
Try this - restart or boot - immediately start pressing that button rapidly. There is a short window a few seconds long during the boot process when the drive is energized, but before it has spun up and recognized there is a disk in it. The door eject button should work at that point.
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Alternate - locate a corded mouse, one good for use on a Mac. Plug it into a free USB port. Restart or boot - immediately press the mouse button, keep it held down - that's a hardware command to the Mac to eject all removable media during boot.
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If the problem is that it keeps booting to the install disk, use the Startup Disk control pane (Apple menu > System Preferences) to reset the boot volume to the hard drive.

Power Mac G4 Mdd Manual

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Power Mac G4 User Manual

Jul 19, 2006 3:01 PM