Dell PowerEdge 4300 Dell PowerEdge 4300 Systems Installation and Troubleshooti - Page 4

Checking Inside the Computer.

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As you use your computer system, observe the following safety guidelines: Be sure your computer, monitor, and attached peripherals are electrically rated to operate with the AC power available in your location. To help avoid possible damage to the system board, wait 5 seconds after turning off the system before removing a component from the system board or disconnecting a peripheral device from the computer. To help prevent electric shock, plug the computer and peripheral power cables into properly grounded electrical outlets. These cables are equipped with threeprong plugs to help ensure proper grounding. Do not use adapter plugs or remove the grounding prong from a cable. If you must use an extension cable, use a three-wire cable with properly grounded plugs. To help protect your computer system from sudden, transient increases and decreases in electrical power, use a surge suppressor, line conditioner, or uninterruptible power supply (UPS). Be sure nothing rests on your computer system's cables and that the cables are not located where they can be stepped on or tripped over. Do not spill food or liquids on your computer. If the computer gets wet, consult Chapter 7, "Checking Inside the Computer." Do not push any objects into the openings of your computer. Doing so can cause fire or electric shock by shorting out interior components. Keep your computer away from radiators and heat sources. Also, do not block cooling vents. For comfort and efficiency, observe the following ergonomic guidelines when setting up and using your computer system: Position your system so that the monitor and keyboard are directly in front of you as you work. Special shelves are available (from Dell and other sources) to help you correctly position your keyboard. Set the monitor at a comfortable viewing distance (usually 510 to 610 millimeters [20 to 24 inches] from your eyes). Make sure the monitor screen is at eye level or slightly lower when you are sitting in front of the monitor. 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. vi

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vi
:KHQ±8VLQJ±<RXU±&RPSXWHU±6\VWHP
As you use your computer system, observe the following safety guidelines:
²
Be sure your computer, monitor, and attached peripherals are electrically rated to
operate with the AC power available in your location.
²
To help avoid possible damage to the system board, wait 5 seconds after turning
off the system before removing a component from the system board or discon-
necting a peripheral device from the computer.
²
To help prevent electric shock, plug the computer and peripheral power cables
into properly grounded electrical outlets. These cables are equipped with three-
prong plugs to help ensure proper grounding. Do not use adapter plugs or
remove the grounding prong from a cable. If you must use an extension cable,
use a three-wire cable with properly grounded plugs.
²
To help protect your computer system from sudden, transient increases and
decreases in electrical power, use a surge suppressor, line conditioner, or un-
interruptible power supply (UPS).
²
Be sure nothing rests on your computer system’s cables and that the cables are
not located where they can be stepped on or tripped over.
²
Do not spill food or liquids on your computer. If the computer gets wet, consult
Chapter 7, “Checking Inside the Computer.”
²
Do not push any objects into the openings of your computer. Doing so can cause
fire or electric shock by shorting out interior components.
²
Keep your computer away from radiators and heat sources. Also, do not block
cooling vents.
(UJRQRPLF±&RPSXWLQJ±+DELWV
:$51,1*±²,PSURSHU²RU²SURORQJHG²NH\ERDUG²XVH²PD\²UHVXOW²LQ²LQMXU\³
For comfort and efficiency, observe the following ergonomic guidelines when setting
up and using your computer system:
²
Position your system so that the monitor and keyboard are directly in front of you
as you work. Special shelves are available (from Dell and other sources) to help
you correctly position your keyboard.
²
Set the monitor at a comfortable viewing distance (usually 510 to 610 millimeters
[20 to 24 inches] from your eyes).
²
Make sure the monitor screen is at eye level or slightly lower when you are sitting
in front of the monitor.
²
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.