monitor screen at or below eye level
wrists relaxed and flat
arms at desk level
monitor and keyboard positioned directly in front of user
feet flat on the floor
When Working Inside Your Computer
Before you remove the computer cover, perform the following steps in the sequence indicated.
NOTICE: Do not attempt to service the computer system yourself, except as explained in this guide and elsewhere in Dell documentation. Always follow installation and service instructions closely.
NOTICE: To help avoid possible damage to the system board, wait 10 to 30 seconds after turning off the system before removing a component from the system board or disconnecting a peripheral device from the computer.
1.Turn off your computer and any peripherals.
2.Ground yourself by touching an unpainted metal surface on the chassis, such as the metal around the
While you work, periodically touch an unpainted metal surface on the computer chassis to dissipate any static electricity that might harm internal components.
3.Disconnect your computer and peripherals from their power sources. Also, disconnect any telephone or telecommunication lines from the computer.
Doing so reduces the potential for personal injury or shock.
