Archived - iMac: How To Force a Restart
Sometimes the Command-Control-Power key combination does not always force the iMac computer to restart when the computer stops responding. This article provides other restart methods for the iMac computer.
To get to the reset button, open the cover on the right side of the iMac and locate the reset hole between the Ethernet and modem ports. It has a small triangle icon next to it. Carefully insert the end of a large straightened paper clip into the hole and push gently on the button inside. Do not use excessive force. Your computer should restart.
If the reset button fails to force a restart, unplug the computer, wait at least 30 seconds, then reconnect the power plug and turn the computer back on in the normal way.
iMac (Slot Loading) and iMac (Early 2001)
The iMac (Slot Loading) does not require the use of a paper clip as the reset and interrupt switches now have a button to activate them. The reset and interrupt buttons are located below the modem port on the right hand side of the iMac (Slot Loading). The reset button is marked with a small triangle and is the front-most of the two buttons.
In the event that the iMac's Reset button does not reset your computer, press and hold power button on the front of the computer for at least 5 seconds to force a restart. If this fails, remove the power cord from the wall and then reconnect it.