Back to Contents PageDell™ OptiPlex™ GX620User's GuidePower SupplyPower SupplyReplacing the Power Supply1. Follow the procedures in "Before You Begin."2. Disconnect the DC power cables from the system board and the drives.Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives. You mustroute these cables properly when you replace them to prevent them from being pinched or crimped.3. Remove the four screws that attach the power supply to the back of the computer chassis.4. Press the release button located on the floor of the computer chassis.5. Slide the power supply toward the front of the computer by approximately 1 inch.6. Lift the power supply up and out of the computer.7. Slide the replacement power supply into place.8. Replace the screws that secure the power supply to the back of the computer chassis.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of yourcomputer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.1 release button2 power supply3 screws (4)4 AC power connector
