Dell Precision 5860 Tower Service Manual

Also see for D03T: Service manual Setup and specifications Manual

Steps1. Lay the computer on the right side.2. Disconnect the ATX CPU power-cables from the connectors on the system board.3. Open the clips on the routing guides on the power-supply cover and remove the CPU ATX power-cables from the clips.4. Remove the four (#6-32) screws from the power-supply cover.5. Remove the power-supply cover from the computer.6. Disconnect the SATA power-cables from the connectors on the system board.7. Disconnect the PCIe power-cables from the PCIe holder.8. Open the bottom-air shroud cover and remove the cables from inside it.9. Remove the four (#6x32) screws that secure the power-supply unit to the chassis.10. Slide the power-supply unit away from the back of the chassis.11. Lift the power-supply unit off the chassis.Installing the power-supply unitPrerequisitesIf you are replacing a component, remove the existing component before performing the installation procedure.WARNING: The cables and ports on the back of the power-supply unit are color-coded to indicate the differentpower wattage. Ensure that you plug in the cable to the correct port. Failure to do so may result in damaging thepower-supply unit and/or system components.About this taskThe following images indicate the location of the power-supply unit and provide a visual representation of the installationprocedure.Removing and installing components 93