Safety Precautions

Observe safety rules when working inside the system and when handling computer components. Avoid electric shock or personal injury by observing the following warning.

Hazardous Voltage

WARNING: before removing the system unit cover, turn off the power and unplug the system power cable. Power is removed only when the power cable is unplugged.

Electrostatic Discharge

WARNING: your computer's internal components are highly susceptible to risk of damage from electrostatic discharge (static electricity, which occurs naturally on your body due to friction). To avoid damaging your equipment, always earth yourself to your computer system before opening the computer's chassis or handling any internal component(s).

To do this, use the following procedure:

  1. For best results, we strongly recommend you purchase an anti-static wrist strap (available at electronic supply stores). To use it, connect the strap's metal “alligator clip” to an unpainted metal portion of your computer's chassis.

  2. Then connect the elastic wrist band to the strap, and slide the wrist band onto your wrist.

Note: if you do not have a wrist strap, you can earth yourself by touching (and maintaining continuous contact with) an unpainted metal part of the computer's chassis while handling any of your computer's internal components or working inside the system.

Safety Rules

Chassis Cover Removal and Replacement

When working inside your computer, you must replace the chassis cover and secure it with the screws before plugging in the power cable and turning it on.