Dell Precision 7740 Service Manual

Installing the WLAN card

1. To install the WLAN card:
   1. Slide the WLAN card to the WLAN card slot in the system board [1].
   2. Route the WLAN antenna cables through the routing channel.
   3. Connect the antenna cables to the connectors in the WLAN card [2].
   4. Align the WLAN metal bracket above the WLAN card and replace the single (M2.0x3.0) screw to secure the WLAN metal bracket to the system board [3,4].
      
2. Install the:
   1. base cover
   2. battery
   3. battery cover
   4. SD card
3. Follow the procedure in After working inside your computer.