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6. Route the wireless card cable through the cable guides on the top of the heatsink assembly, along the cable bundle for the front panel wiring, and
through the cable clip on the side of the power supply.
7. Remove the plug on the back panel where the external connector for the Wi-FI antenna is installed.
8. Position the external antenna connector at the end of the wireless card cable in the antenna connector opening in the back panel so that the retaining
tabs on the connector faceplate pass through the opening, and the bent end of the connector faceplate is pointed away from the power supply.
9. Slide the connector sideways along the back panel slightly so that the retaining tabs on the connector faceplate hold the connector to the back panel.
10. Connect the Wi-Fi external antenna to the wireless card cable connector.
11. Perform the procedure After Working on Your Computer.
12. Restart your computer. Setup the wireless device software as needed to support your wireless network.
Internal Wireless Card - Removal
To remove an internal wireless card do the following:
1. Perform the procedure Before Working on Your Computer.
2. Disconnect the Wi-Fi external antenna from the connector on the back of the computer.
3. Disengage the Wi-Fi external antenna connector from the chassis by sliding it along the back panel toward the power supply, then withdrawing it from
the opening.
4. Remove the wireless card cable from its routing path.
5. Grasp the wireless card assembly at the ends, press down the card retention clasp release and lift the card to unplug it from the system board wireless
card connector. Remove the wireless card assembly from the chassis.
6. Close the opening for the Wi-Fi external antenna connector with the plug provided for the computer. Contact Dell for a replacement plug if none is
available.
7. Perform the procedure After Working on Your Computer.
Installing a Second External Serial Port
If adding an external serial port using a serial connector mounted on a slot filler bracket, connect the internal cable of the connector to the internal serial port
connector on the system board (see System Board Components).
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NOTICE: When routing the wireless card cable through the chassis, avoid making sharp bends. This can cause signal degradation.