Upgrading your computer14English Certain components of your computer are upgradeable such as thememory, the hard disk, the CPU and the expansion card. However, forsafety purpose we do not recommend performing these upgradesyourself. If you want to replace or upgrade any of the components,contact your dealer or a qualified service technician.Post-installation InstructionsAfter installing or upgrading any component:1 Check whether all the components had been installed followingthe step by step instructions in their respective sections.2 Replace any other components previously removed to allow access.3 Replace the external panels.4 Reconnect all peripheral cables and turn on the system power.Opening your ComputerThis chapter introduces how to open the external panels when youneed to install or upgrade components.Remove the side panel1 Turn off your computer and unplug all peripheral devices.2 Place the system on a flat, steady surface.3 Remove the two screws on the side panel.4 Slide the panel towards the back of the system and gently removeit.Replace the side panel1 Put the cover back on the system.2 Lock the panel with previously removed screws.Replacing the HDDUpgrade the HDD1 Remove all the HDD wires from the system's mainboard.