1. connector2. power supply3. release latch4. power supply handleInstalling An AC Power SupplyCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.1. Verify that both the power supplies are the same type and have the same maximum output power.NOTE: The maximum output power (shown in Watts) is listed on the power supply label.2. If applicable, remove the power supply blank.3. Slide the new power supply into the chassis until the power supply is fully seated and the release latch snaps intoplace.NOTE: If you unlatched the cable management arm, re-latch it. For information about the cable managementarm, see the system’s rack documentation.4. Connect the power cable to the power supply and plug the cable into a power outlet.CAUTION: When connecting the power cable, secure the cable with the strap.NOTE: When installing, hot-swapping, or hot-adding a new power supply, allow several seconds for thesystem to recognize the power supply and determine its status. The power-supply status indicator turns greento signify that the power supply is functioning properly.System BatteryReplacing The System BatteryWARNING: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only withthe same or equivalent type recommended by the manufacturer. See your safety information for additionalinformation.CAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet andperipherals.2. Open the system.3. Press the touch points and lift the system battery cover up and away from the network daughter card coolingshroud.56