To install an expansion card:
1.Choose Shut Down from the Special menu or press the Power key on the keyboard.
2.Turn off the computer completely by pressing the main power switch at the back of the computer.
3.Unplug the cable that connects your keyboard to the computer.
4.If there are screws on either side of the back panel, remove them.
5.Place your thumbs on the two plastic tabs on the back panel of the computer.
6.Press down on the tabs and pull gently until the back panel opens.
