7. If you removed a sound card:
a. Enter system setup, select Audio Controller, and change the setting to On. (See the Dell™ Technology Guide for more information).
b. Connect external audio devices to the audio connectors on the back panel of the computer.
8. If you removed a network-adapter card connector:
a. Enter system setup, select Network Controller, and change the setting to On. (See the Dell™ Technology Guide for more information).
b. Connect the network cable to the integrated network connector on the back panel of the computer.
Internal Wireless Card - Installation
The internal wireless card is an optional device.
To install the card, do the following:
1. Perform the procedure Before Working on Your Computer.
2. If installed, remove the filler plug covering the opening in the back panel for the Wi-Fi external antenna connector.
3. Locate the wireless card connector on the system board (see System Board Components).
4. Position the wireless card connector directly above the system board connector with cable edge of the card toward the back of the chassis.
5. Insert the wireless card connector into the system board connector until the card retention clasp catches the metal loop on the side of the chassis and
holds the card securely in place.
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