Dell OptiPlex 755 User's Guide - Page 50
Before you close the card retention mechanism, ensure
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2 1 1 card retention latch 2 alignment guide 4 Disconnect the PS/2 serial adapter cable from the system board (see "System Board Components" on page 32). 5 If necessary, disconnect any external cables connected to the adapter. 6 Ease the PS/2 serial-port adapter bracket out of its retention slot. 7 If you are removing the adapter permanently, install a filler bracket in the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer and maintains the airflow that cools your computer. 8 Before you close the card retention mechanism, ensure that: • The tops of all cards and filler brackets are flush with the alignment bar. • The notch in the top of the card or filler bracket fits around the alignment guide. 9 Secure the card(s) by closing the card retention latch and snapping it into place. 10 Replace the computer cover (see"Replacing the Computer Cover" on page 317). 50 Cards