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Safety Instructions 7
Safety Instructions
Use the following safety guidelines to protect yourself and your computer.
For comfort and efficiency, observe the ergonomic guidelines provided in
the Tell Me How help file.
When Using Your Computer
CAUTION: Do not operate your computer with any cover(s)
(including the computer cover, filler brackets, front-panel inserts,
and so on) removed.
• To help avoid damaging your computer, be sure that the voltage
selection switch is set to match the AC power available at your
location:
– 115 V/60 Hz in most of North and South America and some Far
Eastern countries such as South Korea and Taiwan
– 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
– 230 V/50 Hz in most of Europe, the Middle East, and the Far East
Also be sure that your monitor and attached devices 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 computer before disconnecting or connecting a
non-USB device from the computer.
• To help prevent electric shock, plug the computer and device power
cables into properly grounded power sources. These cables are
equipped with 3-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 3-wire cable with properly grounded
plugs.