[. . . ] Note: Written and video instructions covering customer-installable parts are available at http://www. info. apple. com/installparts/. Tools Required No tools are required for this procedure. Opening the Computer Warning: Always turn off your computer before opening it to avoid damaging its internal components. If you think your computer is in sleep, press the power button on the front of the computer to wake it. [. . . ] Shut down your computer by opening the Special menu and choosing Shut Down. Then wait five minutes for the computer's internal components to cool down. If you attached a security cable through the computer's lockable cover latch, remove the cable. (Figure 1A) Important: To avoid electrostatic discharge, always ground yourself by touching the port access covers before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer. Warning: Never turn on your computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury. Power Mac G4 ATA Drive Cable - 2 Apple Computer, Inc. Under the copyright laws, this document may not be copied, in whole or in part, without the written consent of Apple. The Apple logo is a trademark of Apple Computer, Inc. , registered in the U. S. Use of the "keyboard" Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. [. . . ] Use of the "keyboard" Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. Every effort has been made to ensure that the information in this document is accurate. [. . . ]