142 Installing System Components10 Close the system. See "Closing the System."11 Place the system upright and on its feet on a flat, stable surface.12 Reattach any peripherals, then connect the system to the electrical outlet.13 Turn on the system and attached peripherals.SAS BackplaneRemoving the SAS BackplaneCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is not coveredby your warranty. Read and follow the safety instructions that came with theproduct.1 Turn off the system, including any attached peripherals, and disconnectthe system from the electrical outlet and peripherals.2 Open the system. See "Opening the System."3 Remove the expansion card stabilizer. See "Removing the Expansion CardStabilizer."4 Remove the cooling shroud. See "Removing the Cooling Shroud."5 Remove all hard drives. See "Removing a Hot-Swap Hard Drive."NOTE: Keep note of which bays the hard drives were installed in so they canbe replaced in the same bays later.6 Disconnect the following cables from the backplane (see Figure 3-25):• SAS A cable• SAS B cable• backplane power cable7 Disconnect the cables that are routed over the notch in the backplaneboard. See Figure 3-25.a Disconnect the internal USB module cable from the system board.See "Removing the Internal USB Module."b Disconnect the SAS A and SAS B cables from the integrated storagecard. See "Removing an Integrated Storage Controller Card."
