Compaq Evo N400c Hardware Manual page 95

11. To add a new modem/NIC board, align the keyed end of the
board with the keyed area of the modem slot. Carefully insert
the board into the modem slot 1 at a 45-degree angle and
press down on the board 2. When properly seated, the
retainer latches snap into place.
The board connectors are keyed (notched) to ensure correct
positioning.
12. Plug the internal modem-to-RJ11 cable 3 (located inside the
computer) into the connector on the modem/NIC board.
13. Replace the palm rest and reinstall the screws.
14. Connect the modem or network cable to the appropriate jack
on the computer and to the wall. Refer to "Connecting a
Modem or NIC" in Chapter 7.
Hardware Guide
Computer Upgrades and Add-ons
8–15