Dell PowerEdge 4350 - Manual (Page 5)

Adjust the tilt of the monitor, its contrast and brightness settings, and the lighting
around you (such as overhead lights, desk lamps, and the curtains or blinds on
nearby windows) to minimize reflections and glare on the monitor screen.
Use a chair that provides good lower back support.
Keep your forearms horizontal with your wrists in a neutral, comfortable position
while using the keyboard or mouse.
Always leave space to rest your hands while using the keyboard or mouse.
Let your upper arms hang naturally at your sides.
Sit erect, with your feet resting on the floor and your thighs level.
When sitting, make sure the weight of your legs is on your feet and not on the
front of your chair seat. Adjust your chair's height or use a footrest, if necessary,
to maintain proper posture.
Vary your work activities. Try to organize your work so that you do not have to
type for extended periods of time. When you stop typing, try to do things that
use both hands.
A
When Working Inside Your 0>mputer
Before you remove the computer covers, perform the following steps in the sequence
indicated.
WARNING: Before working inside the computer, unplug the system to help
prevent electric shock or system board damage. Certain system board com­
ponents continue to receive power any time the computer is connected to
an electricai outlet.
CAUTION: Do not attempt to service the computer system yourself, «ccept
as explained in this guide and elsewhere in Dell documentation. Always
follow installation and service instructions closely.
CAUTION: To help avoid possible damage to the system board, wait 5 sec­
onds after turning off the system before removing a component from the
system board or disconnecting a peripheral device from the computer.
1. Touch an unpainted metal surface on the chassis, such as the metal around the
card-slot openings at the back of the computer, before touching anything inside
your computer.
While you work, periodically touch an unpainted metal surface on the computer
chassis to dissipate any static electricity that might harm internal components.
2. Turn off your computer and any peripherals.
3. Disconnect your computer and peripherals from their power sources. Also, dis­
connect any telephone or telecommunication lines from the
computer.
Doing so reduces the potential for personal injury or shock.
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