Personal Computer User Manual

vii
W
hen Using the Computer
System
As you use the computer system, observe the following
safety guidelines:
•
If your computer has a voltage selection switch on
the power supply, be sure the switch is set to match
the alternating current (AC) power available at your
location:
— 115 volts (V)/60 hertz (Hz) in most of North and
South America and some Far Eastern countries
such as Japan, South Korea, and Taiwan
— 230 V/50 Hz in most of Europe, the Middle
East, and the Far East
•
Be sure the monitor and attached peripherals are
electrically rated to operate with the AC power avail-
able in your location.
•
To help prevent electric shock, plug the computer
and peripheral power cables into properly grounded
power sources. These cables are equipped with
three-prong plugs to 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 the computer system from sudden,
transient increases and decreases in electrical power,
use a surge suppressor, line conditioner, or un-
interruptible power supply (UPS).
•
Be sure nothing rests on the computer system’s
cables and that the cables are not located where they
can be stepped on or tripped over.
•
Do not push any objects into the openings of the
computer. Doing so can cause fire or electric shock
by shorting out interior components.
•
Keep the computer away from radiators and heat
sources. Also, do not block cooling vents. Avoid
placing loose papers underneath the computer, and
do not place the computer in a closed-in wall unit or
on a rug.