80 Installing System ComponentsInstalling the Redundant Power Supply1 Verify that both power supplies are of the same type and have thesame maximum output power.2 Slide the new power supply into the system until the power supply is fullyseated and the release latch snaps into place. See Figure 3-17.3 Reconnect your system and peripherals to their electrical outlets, and turnon the system.NOTE: When installing, hot-swapping, or hot-adding a new power supply in asystem with two power supplies, allow several seconds for the system to recognizethe power supply and determine its status. The power-supply status indicator turnsgreen to signify that the power supply is functioning properly. See Figure 1-4.Power Distribution BoardCAUTION: Many repairs may only be done by a certified service technician.You should only perform troubleshooting and simple repairs as authorized inyour product documentation, or as directed by the online or telephone serviceand support team. Damage due to servicing that is not authorized by Dell is notcovered by your warranty. Read and follow the safety instructions that camewith the product.NOTE: The power distribution board is available only for redundantpower supplies.Removing the Power Distribution Board1 Turn off the system, including any attached peripherals, and disconnectthe system from its electrical outlet.2 Open the system. See "Opening the System" on page 53.3 Remove the cooling shroud. See "Removing the Cooling Shroud" onpage 54.4 Remove the power supplies from the system. "Removing the RedundantPower Supply" on page 79.5 Remove the expansion card riser. See "Removing the Expansion-CardRiser" on page 66.6 Remove all the cables from the power distribution board. See Figure 5-7.7 Remove the four securing screws from the power distribution board.8 Lift the power distribution board out of the system. See Figure 3-18.
