Dell Inspiron 14 Plus 7430 Owner's Manual page 46

Steps
1. Connect the antenna cables to the wireless card.
Table 26. Antenna-cable color scheme
Connectors on the
wireless card
Main
Auxiliary
2. Align the notch on the wireless card with the tab on the M.2 wireless-card slot on the system board.
3. Slide the wireless card into M.2 wireless-card slot on the system board.
4. Place the wireless-card bracket on the M.2 wireless card.
5. Align the screw hole on the wirelss-card bracket to the screw mount on the system board.
6. Replace the screw (M2x3) that secures the wireless-card bracket to the system board.
Next steps
1. Install the base cover.
2. Follow the procedure in
46 Removing and installing Customer Replaceable Units (CRUs)
Antenna-cable color
White
Black
After working inside your
Silkscreen marking
MAIN
AUX
computer.
△ (white triangle)
▲ (black triangle)