Dell 755 manual Back View

Back View

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1	cover-release latch	This latch allows you to open the computer cover.
2	padlock ring	Insert a padlock to lock the computer cover.
3	voltage selection switch	Your computer is equipped with a manual voltage-selection switch. 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.

NOTICE: In Japan, the voltage selection switch must be set to the 115-V position.

Also, ensure that your monitor and attached devices are electrically rated to operate with the AC power available in your location.

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Mini Tower Computer