1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2. Remove the cover (see "Removing the Cover").
3. Disconnect all expansion-card cables.
4. Remove the expansion-card cage (see "Removing the Expansion-Card Cage").
5. Position the expansion-card cage so that the riser board lies horizontally on your work surface.
6. Release the expansion card:
a. Open the expansion-card latch (see Figure4-12).
b. Press the release tab on the card-guide latch (see Figure4-12).
c. Grasp the expansion card by its top corners, and carefully remove it from the expansion-card connector.
7. If you are removing the card permanently, install a metal filler bracket over the empty expansion slot opening and close the expansion-card latch.
8. Replace the expansion-card cage (see "Replacing the Expansion-Card Cage").
9. Reconnect all expansion-card cables.
10. Replace the cover (see "Replacing the Cover").
Expansion-Card Riser Board
The expansion-card riser board contains three PCI/PCI-X expansion slots and the chassis intrusion switch.
Removing the Expansion-Card Riser Board
1. Remove the expansion-card cage (see "Removing the Expansion-Card Cage").
2. Remove all expansion cards (see "Removing an Expansion Card").
3. Remove the expansion-card riser board (see Figure4-13):
a. Loosen the thumbscrew on the card-guide latch bracket.
b. Rotate the card-guide latch bracket.
c. Loosen the thumbscrew on the riser board.
d. Slidetheriserboardtowardtheexpansionslotopeningsabout0.5inch.
e. Lift the riser board off the expansion-card cage's grounding tabs.
Figure 4-13. Removing and Replacing the Expansion-Card Riser Board
