Dell OptiPlex 755 User Manual page 113

8 Insert the card firmly into the card connector on the riser-card cage.
9 Lower the card-retention latch and press it into place, securing the card(s) in the computer.
10 Replace the riser-card cage:
Align the tabs in the side of the riser-card cage with the slots on the side of the computer, and slide
a
the riser-card cage down into place.
Ensure that the riser cards are fully seated in the connectors on the system board.
b
11 Reconnect any cables that you removed in step 4.
12 Connect any cables that should be attached to the card.
NOTICE:
Do not route card cables over or behind the cards. Cables routed over the cards can prevent the
computer cover from closing properly or cause damage to the equipment.
13 Replace the computer cover (see "Replacing the Computer Cover" on page 317), reconnect the
computer and devices to electrical outlets, and then turn them on.
14 If you installed a sound card, perform the following steps:
Enter system setup, select Audio Controller, and change the setting to Off (see "Entering System
a
Setup" on page 280).
Connect external audio devices to the sound card's connectors. Do not connect external audio
b
devices to the microphone, speaker/headphone, or line-in connectors on the back panel.
1 riser-card cage 3
2 4
slots
riser cards (2)
system board connectors (2)
1
2
3
4
Expansion Cards
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