Dell External OEMR R410 Owners Manual - Page 138
Installing the SAS Backplane, Power Distribution Board (Service-Only Procedure)
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Installing the SAS Backplane 1 Install the SAS backplane: a Lower the backplane into the system, being careful to avoid damaging components on the face of the board. b Align the slots in the backplane with the retention hooks on the back of the drive bays, then move the backplane forward until the retention hooks fit through the slots in the backplane. See Figure 3-27. c Slide the backplane downward until the two blue retention latches snap into place. 2 Connect the SAS data and power cables to the SAS backplane. 3 Install the hard drives in their original locations. 4 Close the system. See "Closing the System" on page 83. 5 Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals. Power Distribution Board (Service-Only Procedure) The power distribution board is located on your system directly behind the power supply fan modules. This feature provides additional cooling to the power supplies through the power distribution shroud that routes airflow to the power supplies. See Figure 3-28. Removing the Power Distribution Board WARNING: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system. 1 Remove the power supplies from the system. See "Removing a Redundant Power Supply" on page 92. 2 Locate the power distribution shroud cover and lift it out. See Figure 3-1. 3 Disconnect power distribution cables from the system board (see "System Board (Service-Only Procedure)" on page 140) and disconnect the fan cable connectors. See Figure 3-28. 138 Installing System Components