Installing System Components 93Removing the Power Supply BlankCAUTION: To ensure proper system cooling, the power supply blank must beinstalled in power supply bay PS2 in a non-redundant configuration. Remove thepower supply blank only if you are installing a second power supply.To remove the power supply blank, remove the screw and pull outward on theblank.Installing the Power Supply BlankNOTE: Install the power supply blank only in power supply bay 2.Align the blank with the power supply bay and insert the blank into thechassis until it clicks into place. Secure with screw.Power Distribution BoardWARNING: Whenever you need to lift the system, get others to assist you.To avoid injury, do not attempt to lift the system by yourself.CAUTION: 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.The power distribution board comes as a power distribution board assemblywith two power distribution boards.Removing the Power Distribution Board Assembly1 Turn off the system, including any attached peripherals, and disconnectthe system from its electrical outlet.2 Remove the system from the rack and place on a flat surface.3 Remove the right side rail from the chassis.4 Remove the two screws on the side of the chassis. See Figure 3-21.5 Open the system. See "Opening the System" on page 58.6 Disconnect all the power cables from the power distribution board.7 Remove the two screws that secure the power distribution board assemblyto the bottom of the chassis. See Figure 3-21.
