Apple Power Macintosh 4400 - Manual (Page 4)

4 Chapter 1
3 Plug the other end of the power cord into a three-hole grounded outlet or power strip.
Choose a power outlet to which you have easy access.
IMPORTANT Be sure that at least one end of the power cord is within easy
reach so that you can unplug the computer when you need to.
If the computer starts up: If you hear a tone, the computer has started up and
you need to turn it off before proceeding. Press the power button located on
the front of the computer to turn it off. (Refer to Chapter 3, “Connecting
Equipment and Expanding Your Computer,” for an illustration showing the
location of the power button on the front of the computer.)
Power cord plug Power cord socket
WARNING This equipment is intended to be electrically grounded.
Your Macintosh is equipped with a three-wire grounding plug—a plug
that has a third (grounding) pin. This plug will fit only a grounded AC
outlet. This is a safety feature. If you are unable to insert the plug
into the outlet, contact a licensed electrician to replace the outlet with
a properly grounded outlet. Do not defeat the purpose of the
grounding plug!