Troubleshooting Power Button - 12

Power Button

The power button on the front of the iMac (see Table 1 below) will
power up the computer, or put it to sleep, but it will not shut the
iMac down.

Note:

When the iMac is in Sleep mode, the amber LED
pulses on and off.
The power button on the keyboard (see Table 2 below) retains
previous functionality. The keyboard button can power up the
iMac, put the iMac to sleep, or shut down the computer with a
press of the button. And, as before, you can shut down the com-
puter by selecting Shut Down in the Special menu.

Table 1: iMac Power On Button Functionality

Pressing the Power On Button on the
Front of the iMac When the Computer
is:
Result
Powered On iMac goes immediately to sleep, unless a server
is mounted, then a dialog box appears
Powered Off iMac powers on
Sleeping iMac wakes from sleep

Table 2: Keyboard Button Functionality

Pressing the Keyboard Button When
the iMac is:
Result
Powered On A dialog box appears to choose sleep or shutdown
Powered Off iMac powers on
Sleeping iMac wakes from sleep