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Troubleshooting Symptom Charts/Startup - 3
Hardware failure
occurs (four-tone
error chord sequence
sounds after startup
chord)
1 Reset PRAM. (See Power Manager and PRAM Reset in
Additional Procedures.)
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 from hard drive 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.