Dell Inspiron 640M Owner's Manual page 129

NOTICE:
To avoid damaging the system board, you must remove the main battery before you begin working inside
the computer.
If you ordered a card with Bluetooth wireless technology with your computer, the card is already installed.
1 Follow the procedures in "Before You Begin" on page 109.
2 Loosen the captive screws in the modem/Mini-Card/wireless cover, and then remove the cover.
3 Remove the screw securing the card carrier.
4 Pull the carrier out of the compartment so that you can disconnect the card from its cable and remove
the card from the computer.
5 To replace the card, connect the card to the cable.
6 Then carefully insert the card into the carrier and insert the carrier into the compartment.
7 Replace the screw securing the card carrier into place.
1 screw
4 card connector
1
4
2 card carrier
2
3
3 card
Adding and Replacing Parts
129