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iMac G5 (20-inch iSight) Troubleshooting — Symptom Charts 162
Optical disc constantly ejects
Disconnect all peripheral devices, especially the mouse in cases where the disc is constantly 1.
ejecting. Retest. If the issue is resolved, reconnect peripherals one-at-a-time until faulty
peripheral is identied.
Try cleaning the disc. If the disc is dirty or scratched, it may not mount. 2.
Is the issue resolved?
Yes: Problem solved.
No: Try a dierent disc. If the issue persists, go on to the next step.
Boot from Apple Hardware Test (hold down the “C” key at startup). If you can boot to this 3.
volume, run the Quick and Extended tests.
Does the unit pass the tests?
Yes: Restart to the internal hard drive and test again.
No: Replace the component (s) indicated by the test results. If you cannot boot to Apple
Hardware Test because it ejects, go on to step 4.
Boot from the system install DVD (use Startup Manager, hold down the Option key at 4.
startup). If you can boot from this volume, perform an Archive and Install with the Install
DVD that came with the computer and test.
Is the issue resolved?
Yes: 5. Problem solved.
No: If you cannot boot to Apple Hardware Test or to the Install DVD because they eject,
reseat the optical drive ex cable and retest.
Replace the optical drive ex cable.6.
Replace the optical drive.7.
Replace the logic board8.