Apple Power Macintosh 8600 - Manual (Page 191)

If you see a blinking question mark on your screen
The blinking question mark means that your Macintosh is unable to find
usable system software on your hard disk.
1 Press the Open/Close button of your CD-ROM drive to open the CD-ROM tray.
2 Place the CD-ROM disc in the tray with the disc label facing up.
3 To close the tray, push the tray in or press the Open/Close button.
Your Macintosh recognizes the CD-ROM disc as a startup disk, and in a few
seconds the Macintosh desktop appears.
If you see the Macintosh desktop
1 Press the Open/Close button of your CD-ROM drive to open the CD-ROM tray.
2 Place the CD-ROM disc in the tray with the disc label facing up.
3 To close the tray, push the tray in or press the Open/Close button.
4 Hold down the C key on your keyboard while you choose Restart from the Special menu.
Continue to hold down the C key until you see the “Welcome to
Macintosh” message.
191 Diagnostic Techniques