Dell POWEREDGE R610 - Manual (Page 93)

Installing System Components 93
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."
3 If an expansion card is installed in the expansion slot, remove the card now.
See "Removing an Expansion Card."
4 If you are removing the riser 1, remove the integrated storage controller
card. See "Removing the Integrated Storage Controller Card."
5 To remove the expansion-card riser, press the retention latch, then lift the
expansion-card riser from the chassis. See Figure 3-9.