Before you upgrade your computer
Disconnect the computer from its power source and from telecommunications links, networks, or modems before you open the unit or follow any of the procedures described in this section. Failure to do so may result in personal injury or equipment damage.
Electrostatic discharge (ESD) can damage disk drives,
∙Avoid working in a carpeted area.
∙Do not handle materials that may produce or hold static electricity, such as cellophane wrappers.
∙Ground yourself by maintaining continuous contact with an unpainted metal portion of the chassis while performing the procedure.
When removing a slot cover, avoid rough handling that may damage components on the system board or
Caution:
Electrostatic discharge (ESD) can damage disk drives,
Always turn the power off before you open the system or connect your computer to peripheral equipment. Otherwise, damage may occur to the integrated circuits in your computer.
Page 78