Dell Dimension 4400 Dell Dimension 4400 Systems Owner's Manual - Page 9

When Using Your Computer - power supply

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As you use your computer, observe the following safe-handling guidelines. 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 or opened. • 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 NOTE: The voltage selection switch must be set to the 115V position even though the AC supply in Japan is 100 V. - 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 avoid shorting out your computer when disconnecting a network cable, first unplug the cable from the network adapter on the back of your computer, and then from the network jack. When reconnecting a network cable to your computer, first plug the cable into the network jack, and then into the network adapter. • 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. 9

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9
As you use your computer, observe the following safe-handling guidelines.
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 or opened.
•
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
NOTE:
The voltage selection switch must be set to the 115V position
even though the AC supply in Japan is 100 V.
–
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 avoid shorting out your computer when disconnecting a network
cable, first unplug the cable from the network adapter on the back of
your computer, and then from the network jack. When reconnecting a
network cable to your computer, first plug the cable into the network
jack, and then into the network adapter.
•
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.