Installing System Components 834 If applicable, remove the expansion card from the riser.5 Press the release latch(es) on the riser board and lift the riser board straight up from the system board. SeeFigure 3-22.The left riser board has two release latches; the center riser board has one latch.Installing an Expansion-Card RiserCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.1 Align the riser board with the alignment pins on the system board, then lower the board onto the pins.2 Press down on the riser board until the edge connector(s) on the board is (are) fully seated in the riserboard connector on the system board. See Figure 3-22.3 If applicable, install the expansion card in the expansion-card slot.4 Close the system. See "Opening and Closing the System" on page 46.5 Replace the bezel. See "Removing and Replacing the Front Bezel" on page 45.6 Reconnect your system and peripherals to their electrical outlets, and turn on the system.Backplane BoardRemoving the Backplane BoardCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.The removal procedure varies slightly, depending on which backplane board you have in your system.1 If applicable, remove the bezel. See "Removing and Replacing the Front Bezel" on page 45.2 Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.3 Open the system. See "Opening and Closing the System" on page 46.4 Remove the hard drives.NOTICE: To properly reinstall the hard drives, ensure that you record which hard drive you remove fromwhich bay.5 Disconnect the SAS cable and power cable from the backplane.– If you are removing a 3.5-inch hard drive (two-drive) backplane, see Figure 3-23.– If you are removing a 2.5-inch hard drive (four-drive) backplane, see Figure 6-4.
