Compaq Evo N400c Hardware Manual page 94

Computer Upgrades and Add-ons
7. If a modem/NIC board is already installed, disconnect the
modem/NIC cable from the board 1.
8. Remove the board by pulling away the plastic retention clips
on each side of the board 2. The board tilts upward.
9. Lift the edge of the board and gently slide it out of the
connector at a 45-degree angle 3.
10. Place the removed board in an electrostatic-safe container.
8–14 Hardware Guide