Dell Inspiron 16 Plus 7640 Owner's Manual page 43

Figure 18. Installing the wireless card
Steps
1. Connect the antenna cables to the wireless card.
Table 28. Antenna-cable color scheme
Connector 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 the M.2 wireless-card slot (WLAN1) on the system board.
4. Place the wireless-card bracket on the M.2 wireless card.
5. Align the screw hole on the wireless-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.
Antenna-cable color
White
Black
Removing and installing Customer Replaceable Units (CRUs)
Silkscreen marking
MAIN
AUX
△ (white triangle)
▲ (black triangle)
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