Apple Macintosh System 7.5 - Manual (Page 68)

Automatic power off
If your Macintosh allows you to turn the power on and off with the keyboard
(Centris, Quadra, and later models), you can use the CPU Energy Saver to
shut down the computer automatically. You can set the computer to shut down
when it is idle for a specified amount of time or at a specific time of day on
one or more days of the week.
To set options, open the Apple (K) menu and choose Control Panels. Then
choose the CPU Energy Saver control panel.
You can also specify conditions that stop the computer from automatically
shutting down. The options prevent shutdown if you’re connected to a
shared disk on the network, if a serial port is being used by a printer or
telecommunications program, if a “busy” pointer (that is, a watch) is on the
screen, or if a sound is playing.
For step-by-step help
Choose Macintosh Guide from the Guide menu (marked with the
h
icon) and click the Topics
button. Select the topic “Setting Options” and see “How do I turn off the computer automatically?” For
information about items in the control panel, choose Show Balloons from the Guide menu.
63 What’s New