Apple G4 manual Flashing question mark appears on the screen, System shuts down intermittently

Flashing question mark appears on the screen

1.Start up from the software install and restore disc that came with the computer (hold down the "C" key during restart).

2.When the Installer opens, from the Installer menu, select Open Disk Utility.

3.If the hard drive is recognized, under the First Aid tab verify the hard disk, and repair if needed. Restart the computer.

4.If the hard drive is not recognized, reseat the hard drive flex cable. If still not recognized, replace the hard drive.

5.Reinstall system software using the software install and restore disc.

Computer begins to power up, the fan and hard drive are spinning, hitting caps lock key and LED turns on, but there is no startup chime or video

1.With a non-metallic tool, reset the power manager by pressing the reset button (located under the keyboard in the recess just left of the power button). Wait five seconds before continuing. Press the power button to start the computer.

Warning: Resetting the power manager will permanently remove a RAM disk, if present, and all of its contents. You will also need to reset the date and time (using the Date & Time control panel).

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2. Replace the logic board.

System shuts down intermittently

1.Disconnect all external peripherals.

2.Make sure the battery is fully inserted and is charged.

3.Check battery connection to main logic board.

Startup Symptom Charts PowerBook G4 (1GHz/867MHz) Troubleshooting - 3