Dell Inspiron 4150 - Manual (Page 69)

Replacing the Mini PCI Card
1. Align the Mini PCI card with the connector at a 45-degree angle, and press the Mini PCI card into the connector until you hear a click.
2. Connect the antenna cables to the Mini PCI card.
3. Replace the cover, and tighten the screws.
Modem
Removing the Modem
1. Remove the memory module cover .
2. Remove the two M2 x 3-mm screws that secure the modem to the system board.
3. Pull straight up on the attached pull-tab to lift the modem out of its connector on the system board and disconnect the modem cable.
1 antenna connectors on
card (2)
2 antenna cables (2)
NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.
NOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.
NOTICE: Read " Preparing to Work Inside the Computer " before performing the following procedure.
NOTICE: Do not pull on the modem cable. Pull from the modem connector to disconnect the cable.