Replacing the Power-Supply Unit | 3713 Replacing the Power-Supply UnitWARNING: Before working inside your computer, read the safety informationthat shipped with your computer and follow the steps in "Before You Begin" onpage 11. After working inside your computer, follow the instructions in "AfterWorking Inside Your Computer" on page 13. For additional safety best practicesinformation, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance.Procedure1 Align the screw holes on the power-supply unit with the screw holes on thecomputer base and replace the screws that secure the power-supply unit to thecomputer base.2 Connect the power-supply fan cable to the power-supply unit.3 Connect the power-supply indicator cable to the power-supply unit.4 Connect the power-port cable to the power-supply unit.5 Route the processor and main power-supply cables through their routing guides.6 Connect the processor and main power-supply cables to the system board.Postrequisites1 Replace the I/O panel. See "Replacing the I/O Panel" on page 93.2 Replace the trim cover. See "Replacing the Trim Cover" on page 89.3 Replace the system-board shield. See "Replacing the System-Board Shield" onpage 33.4 Replace the stand. See "Replacing the Stand" on page 49.5 Replace the back cover. See "Replacing the Back Cover" on page 21.
