Installing System Components 129SAS/SATA Backplane BoardRemoving the SAS/SATA Backplane BoardCAUTION: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. See your ProductInformation Guide for complete information about safety precautions, workinginside the computer, and protecting against electrostatic discharge.1 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.2 Open the system. See "Opening the System" on page 71.3 If present, disconnect the optical drive power cable from the SAS/SATAbackplane board. See "Removing the Optical Drive from the System" onpage 109.4 Open the drive-carrier release handle on each hard drive and partiallyextend the drive(s) out of their drive bays. See "Removing a Hot-Plug HardDrive" on page 74.5 Remove the storage controller daughter card. See "Removing a SASController Daughter Card" on page 86.6 Disconnect the SAS cable from the backplane connector.7 Disconnect the power cable from the backplane connector.8 Disconnect the optical drive power cable from the backplane connector.9 Remove the sideplane board. See "Removing the Sideplane Board" onpage 127.10 Remove the SAS/SATA backplane board:a Pull the backplane board release pin. See Figure 3-30.b While pulling the release pin, tilt the backplane board toward the backof the system.c Lift the backplane board from its securing tabs and remove thebackplane board from the chassis.