Removing and Installing Parts 59
  NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can cause damage to 
the equipment.
6
If you installed a sound card:
a
Enter system setup (see "System Setup" on page 80), select 
Audio Controller
, and then change the 
setting to
Off
.
b
Connect external audio devices to the sound card’s connectors. Do not connect external audio 
devices to the microphone, speaker/headphone, or line-in connectors on the back panel.
7
If you installed an add-in network adapter and want to disable the integrated network adapter:
a
Enter system setup (see "System Setup" on page 80), select 
Network Controller,
 and then change 
the setting to 
Off
.
b
Connect the network cable to the add-in network adapter’s connectors. Do not connect the 
network cable to the integrated connector on the back panel.
8
Install any drivers required for the card as described in the card documentation.
Removing a PCI Card
1
Follow the procedures in "Before You Begin" on page 45.
2
If necessary, disconnect any cables connected to the card.
3
Remove the securing screw from the card bracket.
4
Grasp the card by its top corners, and ease it out of its connector.
5
If you are removing the card permanently, install a filler bracket in the empty card-slot opening.
If you need a filler bracket, contact Dell (see "Contacting Dell" on page 89).
  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.
 
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the 
computer.
6
Close the computer cover, reconnect the computer and devices to electrical outlets, and then turn 
them on.
7
Remove the card’s driver from the operating system.
8
If you removed a sound card:
a
Enter system setup (see "System Setup" on page 80), select 
Audio Controller
, and then change the 
setting to
On
.
b
Connect external audio devices to the audio connectors on the computer back panel.
9
If you removed an add-in network connector:
a
Enter system setup (see "System Setup" on page 80), select 
Network Controller
, and then change 
the setting to 
On
.
b
Connect the network cable to the integrated connector on the computer back panel.