Dell PowerEdge R905 - Manual (Page 129)

Installing System Components
129
5 Disconnect the SAS data and backplane power cables from the back of the
SAS backplane. See Figure 3-29 or Figure 3-30.
6 Disconnect the power cable from the top of the peripheral interposer
board. See Figure 3-31.
NOTICE:
When disconnecting the control-panel cable, hold the pull-tab on the
control-panel cable connector to prevent damage to the interposer board or the
cable itself.
7 Disconnect the control-panel cable from the control-panel cable
connector on the back of the interposer board. See Figure 3-31.
8 Disconnect the planar interface cable from the back of the interposer
board.
9 Disconnect the SATA cable from the back of the interposer board.