74 Installing System Components
Expansion-Card Riser and Expansion Card
CAUTION: Expansion cards can only be installed in the slots on the
expansion-card riser. Do not attempt to install expansion cards directly into the
riser connector on the system board.

Removing the Expansion-Card Riser

CAUTION: Many repairs may only be done by a certified service technician.
Youshould only perform troubleshooting and simple repairs as authorized in
yourproduct documentation, or as directed by the online or telephone service
andsupport team. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow the safety instructions that came
withthe product.
1
Turn off the system, including any attached peripherals, and disconnect
the system from its electrical outlet.
2
Open the system. See "Opening the System" on page 58.
3
Remove the cooling shroud. See "Removing the Cooling Shroud" on
page60.
4
Grasp the expansion-card riser assembly firmly and pull it out from the
connector on the system board. SeeFigure 3-11.
5
Lift the expansion-card riser assembly out of the system board.
SeeFigure 3-11.
6
Remove the four securing screws on the expansion-card riser assembly and
slide the expansion card riser out. See Figure3-12.
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