Dell R820 owner manual About Your System, Front-Panel Features And Indicators

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About Your System

Front-Panel Features And Indicators

Figure 1. Front-Panel Features And Indicators—16 Hard Drive System

Item	Indicator, Button, or	Icon	Description
	Connector
1	Power-on indicator, power		The power-on indicator lights when the system power is
	button		on. The power button controls the power supply output to
			the system.
			NOTE: On ACPI-compliant operating systems, turning
			off the system using the power button causes the
			system to perform a graceful shutdown before power
			to the system is turned off.
2	NMI button		Used to troubleshoot software and device driver errors
			when running certain operating systems. This button can
			be pressed using the end of a paper clip.
			Use this button only if directed to do so by qualified
			support personnel or by the operating system's
			documentation.
3	System identification button		The identification buttons on the front and back panels
			can be used to locate a particular system within a rack.
			When one of these buttons is pressed, the LCD panel on
			the front and the system status indicator on the back
			flashes blue until one of the buttons is pressed again.
			Press to toggle the system ID on and off. If the system
			stops responding during POST, press and hold the system
			ID button for more than five seconds to enter BIOS
			progress mode.
			To reset iDRAC (if not disabled in F2 iDRAC setup) press
			and hold the button for more than 15 seconds.
4	Video connector		Allows you to connect a VGA display to the system.

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