Dell OptiPlex 360 (Late 2008) - Manual (Page 51)

Cards 51
7 If you are removing a card permanently, install a filler bracket in the empty
card-slot opening.
NOTE: Installing filler brackets in 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 maintain the airflow that cools your computer.
8 Before you close the card retention mechanism, ensure:
• The tops of all cards and filler brackets are flush with the alignment
guide.
• 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 riser-card cage:
a Align the tabs in the side of the riser-card cage with the slots on the
side of the computer, and slide the riser-card cage down into place.
1 alignment guides (3)
1