Installing System Components 7711 Replace the cooling shroud. See "Installing the Cooling Shroud" onpage 63.12 Close the system. See "Closing the System" on page 53.13 Reconnect the system to its electrical outlet and turn the system on,including any attached peripherals.14 Press to enter the System Setup program, and check that the processorinformation matches the new system configuration.15 Run the system diagnostics to verify that the new processoroperates correctly.See "Running the System Diagnostics" on page 105 for information aboutrunning the diagnostics.Power SuppliesYour system supports 400 W power supply modules.The second power supply provides hot-swappable, power redundancy in yoursystem. In redundant mode, the system distributes the power load across bothpower supplies to maximize efficiency. When a power supply is removed withthe system powered on, the full power load is picked up by the remainingpower supply.Removing a Power SupplyCAUTION: 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.CAUTION: The system requires one power supply for normal operation. Onpower-redundant systems, remove and replace only one power supply at a time ina system that is powered on.
