Installing System Components 163Replacing 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 tabs on the board with the slots on the chassis.3 Press the board into the connector until it is fully seated.4 Install the cooling fan assembly. See "Installing the Cooling Fan Assembly"on page 120.5 Install the memory risers. See "Installing a Memory Riser" on page 101.6 If applicable, install the memory-riser blanks. See "Installing a Memory-Riser Blank" on page 100.7 Close the system. See "Closing the System" on page 90.8 Install the power supplies in the system. See "Installing a Power Supply" onpage 156.9 Reconnect the system to its electrical outlet and turn the system on,including any attached peripherals.Control Panel AssemblyRemoving the Control Panel Display ModuleCAUTION: 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 If installed, remove the front bezel. See "Removing the Front Bezel" onpage 87.2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.
