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

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Installing the heat sink
1. Align and place the heat sink in the slot.
2. Tighten the screws to secure the heat sink to the computer.
3. Install the:
a) system board shield
b) back cover
c) stand
4. Follow the procedure in After working inside your computer .
WLAN card
Removing the WLAN card
1. Follow the procedure in Before working inside your computer .
2. Remove the:
a) stand
b) back cover
c) system board shield
3. To remove the WLAN card:
a) Disconnect the antenna cables from the connectors on the WLAN card [1].
b) Remove the screw that secures the WLAN card to the system board [2].
c) Hold the WLAN card and pull it from the connector on the system board [3].
Disassembly and reassembly 29