Dell GX520 manual Shutdown, Power Management in your online User’s Guide

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3	power button	Press this button to turn on the computer.
		NOTICE: To avoid losing data, do not turn off the computer by pressing the
		power button for 6 seconds or longer. Instead, perform an operating system
		shutdown.
		NOTICE: If your operating system has ACPI enabled, when you press the power
		button the computer will perform an operating system shutdown.
4	Dell badge	The badge can be rotated to match the orientation of your computer. To rotate
		the badge, place your fingers around the outside of the badge, press firmly, and
		turn the badge. You can also rotate the badge using the slot provided near the
		bottom of the badge.
5	power light	This light turns on and blinks or remains solid to indicate different operating
		states:
		• No light — The computer is turned off.
		• Steady green — The computer is in a normal operating state.
		• Blinking green — The computer is in a power-saving mode.
		• Blinking or solid amber — See "Power Problems" in your online User’s Guide.
		To exit from a power-saving mode, press the power button or use the keyboard or
		the mouse if it is configured as a wake device in the Windows Device Manager. For
		more information about sleep modes and exiting from a power-saving mode, see
		"Power Management" in your online User’s Guide.
		See "System Lights" on page 31 for a description of power light patterns that can
		help you troubleshoot problems with your computer.
6	diagnostic lights	Use these lights to help you troubleshoot a computer problem based on the
		diagnostic code. For more information, see "Diagnostic Lights" on page 32.
7	hard-drive activity light	This light flickers when the hard drive is in use.
8	headphone connector	Use the headphone connector to attach headphones and most kinds of speakers.
9	microphone connector	Use the microphone connector to attach a microphone.
10	floppy drive	Insert a floppy disk into this drive.
11	CD/DVD drive	Insert a CD or DVD (if applicable) into this drive.

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