Dell XC730xd owner manual Power button causes the system to

Figure 2. Front panel features and indicators (3.5 inch hard drive chassis)

Item	Indicator, Button, or	Icon	Description
	Connector
1	Diagnostic indicators		The diagnostic indicators light up to display error
			status.
			For more information, see Diagnostic indicators.

2System identification button

You can use the identification buttons on the front

—and back panels to locate a particular system within a rack. When one of these buttons is pressed, the system status indicator on the back flashes until one of the buttons is pressed again. Press to toggle the system ID on and off. If the system stops functioning during POST, press and hold the system ID button for more than five seconds to enter the BIOS progress mode. To reset iDRAC (if not disabled by entering iDRAC Setup mode by pressing ) press and hold the button for more than 15 seconds.

3	Power-on indicator,	The power-on indicator lights when the system
	Power button	power is on. The Power button controls the power
		supply output to the system.
		NOTE: On the Advanced Configuration and
		Power Interface (ACPI)-compliant operating
		systems (OSs), turning off the system by using
		the power button causes the system to
		perform a graceful shutdown before power to
		the system is disconnected.
4	NMI button	Use the Non-Maskable Interrupt (NMI) button to

troubleshoot software and device driver errors while running certain OSs. Press the NMI button using the end of a paper clip

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