Dell PowerEdge R900 - Manual (Page 119)

Installing System Components 119
9 Disconnect the backplane power cable. See Figure 3-26.
10 Depress the latch and lift the SAS backplane off the chassis hooks. See
Figure 3-26.
11 Remove the SAS backplane from the chassis.
Installing the SAS Backplane (2.5" Hard Drives)
1 Position the SAS backplane above the chassis hooks. See Figure 3-26.
2 Press down on the SAS backplane until the latch clicks.
3 Connect the backplane power cable. See Figure 3-26.
4 Install the cable guide. See Figure 3-26.
5 Connect the SAS B cable to the SAS backplane. See Figure 3-26.
6 Connect the SAS A cable from the SAS backplane. See Figure 3-26.
7 Install the hard drives. See "Hard Drives" on page 62.
8 Install the processor heat sinks. See "Installing a Processor Heat Sink" on
page 104.
9 Install the cooling shroud. See "Installing the Cooling Shroud" on page 77.
10 Close the system. See "Installing the Top Cover" on page 60.
Power Interposer Board (Service-only Procedure)
The Power Interposer. Board (PIB) provides power and signals to the 2.5-inch
hot-plug hard drive bay.
NOTE: 3.5-inch systems do not have a Power Interposer Board.
Removing the Power Interposer Board
1 Remove the optical drive. See "Removing the Optical Drive" on page 88.
2 Remove the SAS backplane. See "Removing the SAS Backplane (2.5-inch
Hard Drives)" on page 116.
3 Remove the system board. See "Removing the System Board" on page 122.
4 Disconnect the control panel connector at the top left of the PIB.
5 Disconnect the GND/+12V connector at the top of the PIB.