Use the following safety guidelines to protect yourself and your computer.

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.

Your computer is equipped with either an auto-sensing voltage selector or a manual voltage-selection switch. Computers with an auto-sensing voltage selector do not have a voltage-selection switch on the back panel and automatically detect the correct operating voltage. Computers with a voltage-selection switch on the back panel must be manually set to operate at the correct operating voltage. To help avoid damaging a computer with a manual voltage-selection switch, 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 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.

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Dell 6K797, 4300s manual When Using Your Computer