Dell Inspiron 3847 Desktop Inspiron 3847 Users Guide - Page 50

Removing the Power-Supply Unit WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the computer cover. See "Removing the Computer Cover" on page 12. Procedure 1 Disconnect the DC power cables from the system board (ATX1), hard drive, and optical drive. See "System-Board Components" on page 11. 2 Remove the screws that secure the power-supply unit to the chassis. 3 Press the power-supply clamp to release the power-supply unit from the chassis. 4 Slide and lift the power-supply unit away from the chassis 2 3 1 1 screws (4) 3 power-supply clamp 2 power-supply unit 50 | Removing the Power-Supply Unit