Installing System Components 99
Expansion-Card Risers

Removing Expansion-Card Riser 1

CAUTION: Only trained service technicians are authorized to remove the system
cover and access any of the components inside the system. See your Product
Information Guide for complete information about safety precautions, working
inside the computer, and protecting against electrostatic discharge.
NOTE: You must remove all expansion cards from the expansion-card riser before
removing the riser from the system.
1
Turn off the system, including any attached peripherals, and disconnect
the system from the electrical outlet.
2
Open the system. See "Opening the System" on page 71.
3
Disconnect all cables connected to the expansion card.
4
Remove all expansion cards from the expansion-card riser. See "Removing
an Expansion Card" on page92.
5
Press the tab at the bottom of the riser to release the board from the card
slot and lift expansion-card riser 1 off of the mounting pins and out of the
system. See Figure3-17.

Replacing Expansion-Card Riser 1

Aligning the two pin collars over the mounting pins on the system board,
gently lower the center riser board until the board connector is firmly seated
into the system board socket. See Figure3-17.