Precautionary Measures
Before you perform any of the procedures in this chapter, take a few moments to read the following warning for your personal safety and to prevent damage to the computer system from ESD.
WARNING FOR YOUR PERSONAL SAFETY
AND PROTECTION OF THE EQUIPMENT:
Before you start to work on the computer, perform the following steps in the sequence indicated.
1.Turn off the system unit and any attached peripherals.
2.Disconnect the system unit and any attached peripherals from their power sources to reduce the potential for personal injury or shock.
3.Wear a wrist grounding strap, and clip it to an unpainted metal sur- face, such as the system power supply’s fan guard, on the chassis.
If a wrist grounding strap is not available, touch the fan guard or some other unpainted metal surface on the back of the system unit to discharge any static charge from your body.
