Dell OptiPlex 7440 All-In-One W11C, Owner'S Manual

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Installing the WLAN card
1. Align the WLAN card to the connector on the system board.
2. Tighten the screw to secure the WLAN card to the system board.
3. Connect the antenna cables to the connectors on the WLAN card.
4. Install the:
a) system board shield
b) back cover
c) stand
5. Follow the procedure in After working inside your computer .
Speaker module
Removing the speaker module
1. Follow the procedure in Before working inside your computer .
2. Remove the:
a) stand
b) back cover
c) cable cover
d) speaker cover
e) system board shield
3. To release the speaker module:
a) Disconnect the speaker cable from the connector on the system board [1].
b) Unthread the speaker cables from the retention clips [2].
Disassembly and reassembly 31