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Troubleshooting Symptom Charts/Startup - 3
Hardware failure
occurs (four-tone
error chord sequence
sounds after startup
chord)
1 Reset PRAM.
2 Remove floppy drive from media bay and restart computer.
If startup sequence is normal, insert floppy drive and retest.
3 Replace floppy mechanism.
4 Disconnect hard drive cable and restart computer. If startup
sequence is normal, reconnect cable and retest.
5 Replace hard drive.
6 Replace logic board.
Startup failure
occurs when using
minimum System
Folder and System
7.5.2.
Upgrade to System Enabler 1.2.1 or later. Refer to Apple
Software Updates on Service Source Companion CD.