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Troubleshooting Symptom Charts/ Startup - 40
Memory error
message appears on
the screen
1 Reseat the DIMMs.
2 Verify that only SDRAM DIMMs are installed. Use PC-100
DIMMs on Power Mac G4 (PCI/AGP/Gigabit Ethernet) and
PC-133 DIMMs on Power Mac G4 (Digital Audio/
QuickSilvers).
3 Run Apple Hardware Test. 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.
Flashing question
mark appears on the
screen
1 Start up from the system restore CD and check to see if the
hard drive shows up on the desktop. If it does, go to step 2. If
it does not, go to step 4.
2 Mac OS X: Run Disk Utility. Mac OS 9: Run Disk First Aid.
Update the driver and restart the computer.
3 Reinstall system software using the system restore CD that
came with the computer.
4 Reseat the hard drive data and power cables.
5 Replace the hard drive.