Apple Powerbank G4 manual Error Beeps, Application Quits, Kernel panic or other booting problems

Application Quits, Kernel panic or other booting problems

1.If a specific application quits, replace the application. Verify the application is compatible with OS X.

2.Clear parameter RAM. Hold down Command-Option-P-R during startup until you hear a second startup chime.

3.Run Disk Utility from the Software Install and Restore DVD.

4.Perform a clean install of system software with the software install and restore disc that came with the computer.

Note: Restore disc images are available at http://service.info.apple.com. Select “Disc Images.”

5.Reboot system.

6.Run Apple Service Diagnostic in loop mode (Control-L) for an extended time to test the memory. If the test finds bad memory, replace the DIMMs one at a time and test until all bad DIMMs are replaced with known-good modules.

7.Replace the logic board.

Error Beeps

The computer automatically performs a power-on self test when it is turned on after being fully shut down (not a restart). This section describes what to do if beeps are heard during the startup.

Note: The PowerBook G4 (17-inch) uses PC2700 (also called DDR333) DDR SDRAM SO-DIMMs with a maximum height of 1.25-inch (30 mm). Refer to Memory Card Take Apart chapter for removal and installation.

Computer beeps once at startup

1.One beep means that no RAM is detected.

Note: There is no RAM on the logic board itself, so the computer will beep if no memory is installed in at least one of the RAM slots.

2.Put the original RAM that came with the computer back in, or put in known-good and compatible RAM and restart.

•If symptom does not repeat, replace RAM card(s).

•If symptom repeats, replace logic board.

20 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom Charts