Dell Precision C0931 Setup And Quick Reference Manual page 9

• An auto-sensing voltage circuit — Computers with an auto-sensing voltage circuit
do not have a voltage selection switch on the back panel and automatically detect
the correct operating voltage.
• A manual voltage selection switch — Computers with a voltage selection switch
on the back panel must be manually set to operate at the correct operating
voltage.
NOTICE: To help avoid damaging a computer with a manual voltage selection switch, set the
switch for the voltage that most closely matches the AC power available in your location. For
Japan, the voltage selection switch must be set to the 115-V position even though the AC power
available in Japan is 100 V. Also, ensure that your monitor and attached devices are electrically
rated to operate with the AC power available in your location.
Press the power buttons to turn on the computer and monitors.
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See "Completed Setup" on page 16.
NOTE: Before you install any devices or software that did not ship with your computer, read the
documentation that came with the software or device, or contact the vendor to verify that the
software or device is compatible with your computer and operating system.
Setup and Quick Reference Guide
9