Dell Inspiron 1318 (Mid 2008) - Manual (Page 32)

Replacing the WLAN Card
1. Insert the WLAN card connector at a 45-degree angle into the slot and press the other end of the WLAN card down.
2. Replace the M2 x 3-mm securing screw.
3. Connect the appropriate antenna cables to the WLAN card you are installing. If the WLAN card has two triangles on the label (white and black), connect:
l the white antenna cable to the connector labeled "main" (white triangle)
l the black antenna cable to the connector labeled "aux" (black triangle)
If the WLAN card has three triangles on the label (white, black, and gray), connect:
l the white antenna cable to the white triangle
l the black antenna cable to the black triangle
l the gray antenna cable to the gray triangle
4. Secure unused antenna cables in the protective mylar sleeve.
5. Replace the WLAN cover and tighten the captive screw.
6. Slide the battery into the battery bay, until it clicks into place.
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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 WLAN card, never place cables under the card.