146 Installing System ComponentsSAS 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 If applicable, remove the bezel. See "Removing the Front Bezel."2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.3 Open the system. See "Opening the System."CAUTION: To prevent damage to the drives and backplane, you must remove theSAS drives from the system before removing the backplane.CAUTION: You must note the number of each hard drive and temporarily labelthem before removal to ensure that you can replace them in the same locations.4 Remove all hard drives. See "Removing a Hot-Swap Hard Drive."5 Disconnect the power cable from the end of the SAS backplane.6 Disconnect the SAS data cables from the backplane.7 Remove the SAS backplane from the system:a While pulling the blue latch toward the front of the system, slide thebackplane upward. See Figure 3-35.b When the backplane cannot slide upward any farther, pull thebackplane toward the back of the system to remove it from theretention hooks.c Lift the board out of the system, being careful to avoid damagingcomponents on the face of the board.d Place the SAS backplane face down on a work surface.
