5Grip the edges of the expansion card with the fingers of both hands and carefully work the card out of the expansion-card connector.

6If you are permanently removing the card, replace the metal filler bracket over the empty card-slot opening.

NOTE: Filler brackets must be installed over empty expansion-card slots to maintain FCC certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.

7Replace the expansion-card retainer.

8Close the system. See "Closing the System" on page 55.

Riser Card

The riser card provides two expansion-card slots. See "Expansion Cards" on page 75 for detailed information on the expansion-card slots.

Removing the Riser Card

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1Open the system. See "Opening the System" on page 54.

2Remove any expansion card(s). See "Removing an Expansion Card" on page 78.

3Using a #2 Phillips screwdriver, remove the two screws that secure the riser card to the chassis. See Figure 3-16.

4Lift the riser card straight up and remove the riser card from the system.

Installing System Components

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Dell NM176 owner manual Removing the Riser Card