[. . . ] Power Mac G4 (FW 800) AirPort Extreme Card Replacement Instructions Follow the instructions in this sheet carefully. Failure to follow these instructions could damage your equipment and void its warranty. [. . . ] Warning: The power supply in your computer is a high-voltage component and should not be opened for any reason, even when the computer is off. If the power supply needs service, contact your Apple reseller or Apple Authorized Service Provider. To avoid scratching the case, lower the panel onto a soft, clean cloth. Warning: If you see any lights glowing on the main logic board, the computer has not been shut down. Close the side access panel and shut down the computer before proceeding. Power Mac G4 (FW 800) AirPort Extreme Card - 2 Removing the Installed Card 1. Unplug the antenna wire from the port on the end of the AirPort Extreme Card. (Figure 3) Figure 3 Power Mac G4 (FW 800) AirPort Extreme Card - 3 3. Pull the clear plastic tab on the card to disconnect the card from the connector on the logic board. Insert the replacement AirPort Extreme Card, barcode side facing down, through the opening in the card guide and into the card connector on the logic board. Warning: Do not insert any card other than an AirPort Extreme Card into this connector or you could damage your computer and the card. Attach the antenna wire to the port on the end of the card. Power Mac G4 (FW 800) AirPort Extreme Card - 4 Closing the Computer 1. Raise the side access panel, lift the latch, and press the panel against the case until it snaps securely into place. [. . . ] 1 Infinite Loop Cupertino, CA 95014-2084 USA + 1 408 996 1010 http://www. apple. com Apple, the Apple logo, Mac, Macintosh, and the Mac logo are trademarks of Apple Computer, Inc. , registered in the U. S. Power Mac is a trademark of Apple Computer, Inc. Power Mac G4 (FW 800) AirPort Extreme Card - 5 [. . . ]