144 Installing System ComponentsCAUTION: 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 isnot covered by your warranty. Read and follow the safety instructions thatcame with the product.1 Unpack the new power distribution board assembly.2 Align the power distribution board with the standoffs on the chassis andslide it in place. See Figure 3-31.3 Install the two screws that secure the power distribution board to thechassis. See Figure 3-31.4 Connect the power distribution cables to the system board (see "SystemBoard" on page 144) and fan cable connectors to the power distributionboard as shown in Figure 3-31.5 Locate the hinged interior catches on either side of the shroud and alignand seat the power distribution board cover, rotating it down and over theshroud. See Figure 3-31.6 Install the power supplies in the system. See "Installing a RedundantPower Supply" on page 96.7 Close the system. See "Closing the System" on page 83.System BoardRemoving the System 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 isnot covered by your warranty. Read and follow the safety instructions thatcame with the product.CAUTION: If you are using the Trusted Program Module (TPM) with an encryptionkey, you may be prompted to create a recovery key during program or systemsetup. Be sure to create and safely store this recovery key. If you replace thissystem board, you must supply the recovery key when you restart your system orprogram before you can access the encrypted data on your hard drives.
