Quick Reference Guide

support.dell.com Installing System Board Options 8-5
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To remove an expansion card, perform the following steps.
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1. Turn off the system, including any attached peripherals, and disconnect the sys-
tem from the electrical outlet.
2. Open the computer doors.
3. Disconnect any cables connected to the card.
4. Remove the expansion-card cage as instructed in “Removing the Expansion-Card
Cage” in Chapter 7.
5. Position the expansion-card cage so that the riser board lies horizontally on your
work surface.
6. To release the expansion card from the card cage, rotate the latch away from the
expansion-card bracket.
7. If the expansion card is a full-length card, release the card's inner end by opening
the tab on the card guide (see Figure 8-3).
8. Grasp the expansion card by its top corners, and carefully remove it from the
expansion-card connector.
9. If you are removing the card permanently, install a metal filler bracket over the
empty card-slot opening.
NOTE: Installing a filler bracket over an empty expansion slot is necessary to
maintain Federal Communications Commission (FCC) certification of the system.
The brackets also keep dust and dirt out of the computer and aid in proper cooling
and airflow inside the computer.
10. Replace the expansion-card cage in the chassis as instructed in “Replacing the
Expansion-Card Cage” in Chapter 7.
11. Close the computer doors, and then reconnect the computer and peripherals to
their AC power sources and turn them on.
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The four dual in-line memory module (DIMM) sockets on the system board can
accommodate 64 megabytes (MB) to 2 gigabyte (GB) of registered synchronous
dynamic random-access memory (SDRAM). The DIMM sockets are located near the
front edge of the system board (see Figure 8-1), next to the cooling fan assembly.