Dell Precision M4400 Service Manual - Page 72
The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors
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NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card. NOTICE: To avoid damage to the WWAN card, ensure the cables are not under the card when you click the card into place. NOTICE: Install the WWAN card into the compartment shown in the above photograph. Do not install it in any other location. 1. Slide the WWAN card into the connector at a 30-degree angle to the system board. 2. Press the card down onto the alignment post and hold in position. 3. Replace the M2 x 3-mm screw to secure the card. 4. Connect the white antenna cable to the connector labeled "main" (white triangle), and connect the black antenna cable to the connector labeled "aux" (black triangle). 5. Replace the bottom of the base assembly (see Removing the Bottom of the Base Assembly). 6. Follow the procedure After Working on Your Computer. Back to Contents Page