4.Pull the power supply cover back then lift if up and off the unit.
5.Remove the decorative panel on the rear of the unit by gently prying the panel away from the base at the tab locations on the top and sides of the panel as indicated below (1). Then pull the top of the panel away from the base (2) and push straight down on the panel to release the bottom tabs (3).
8 Chapter 2 Hardware Upgrades