Blue screen appears (a spinning disc cursor may also be visible),
Prohibitory Sign appears,
Restart dialog box appears (Mac OS X 10.2 kernel panic window), or
Gray screen during startup
Prohibitory Sign
Kernel Panic dialog box
1.Make sure all external devices are disconnected and any PC card ejected. If kernel panic goes away, troubleshoot the external device by reconnecting each device until the panic occurs.
2.If there are two RAM cards installed in the expansion slots, remove the top card and restart.
•If symptom repeats, replace bottom card with
•If symptom does not repeat, replace top RAM card with
For assistance in software troubleshooting, go to Knowledge Base article 106464: Mac
OS X: Troubleshooting a Startup Issue.
Hardware Symptom Charts | PowerBook G4 |
