88 Installing System ComponentsInstalling the 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.1 Unpack the new power distribution board assembly.2 Align the power distribution board with the standoffs on the chassis.See Figure 2-19.3 Install the two screws that secure the power distribution board to thechassis. See Figure 2-19.4 Connect the power distribution cables to the system board (see "SystemBoard" on page 89) and fan cable connectors to the power distributionboard as shown in Figure 2-19.5 Locate the hinged interior catches on either side of the shroud and alignand seat the power distribution board shroud, rotating it down and overthe shroud. See "Installing the Cooling Shroud" on page 63.6 Orient the power distribution board with the fan markings on the coveraligned to the fan modules and replace the shroud. See "Installing theCooling Shroud" on page 63.7 Close the system. See "Closing the System" on page 53.8 Reconnect the system to its electrical outlet and turn the system on,including any attached peripherals.