Installing The Power-Supply Unit - Dell D31M Owner's Manual

Steps
1. Disconnect the power-supply cables from their connectors on the system board.
2. Remove the power-supply cables from the routing guides on the chassis.
3. Remove the three screws (#6-32) that secure the power-supply unit to the chassis.
4. Slide and lift the power-supply unit off the chassis.

Installing the power-supply unit

CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the power-supply unit and provides a visual representation of the installation
procedure.
Removing and installing Field Replaceable Units (FRUs) 87