Dell Latitude E643 Owner's Manual page 36

j) ExpressCard cage
k) system board
3. Disconnect the modem-card cable from the modem card.
4. Remove the modem cable from the routing channel.
5. Remove the screw that secures the modem-connector bracket to the computer.
6. Remove the modem-connector bracket from the computer.
7. Remove the modem connector from the computer.
36