Dell OptiPlex 7010 Small Form Factor Desktop Computer - Manual (Page 71)

Steps
1. Disconnect the power button cable from the connector on the system board.
2. Slide and lift the power button away from the computer.
Installing the power button
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the power button and provides a visual representation of the installation
procedure.
Removing and installing Field Replaceable Units (FRUs) 71