Dell R220 owner manual See Getting Help

Item	Indicator, Button, or	Icon	Description
	Connector

5 Electrical indicator

6Hard-drive indicator

7Health indicator

8System status indicator

•External airflow is obstructed.

See Getting Help.

The indicator blinks amber if the system experiences an electrical error (for example, voltage out of range, or a failed power supply or voltage regulator).

See the System Event Log or system messages for the specific issue. Re-seat the power supply by removing and reinstalling it. If the problem persists, see Getting Help.

The indicator blinks green to indicate hard-drive activity.

If the system is on, and in good health, the indicator lights solid blue.

The indicator blinks amber if the system is on or in standby, and any error exists (for example, a failed fan or hard drive).

Lights blue during normal system operation.

Lights amber when the system needs attention due to a problem.

•See the System Event Log or system messages for the specific issue.

•Invalid memory configurations can cause the system to halt at startup without any video output. See Getting Help.

9	System identification	The identification buttons on the front and back
	button	panels can be used to locate a particular system
		within a rack. When one of these buttons is
		pressed, the system status indicator on the front
		and the back of the system flashes 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 the iDRAC
		Settings option) press and hold the button for
		more than 15 seconds.
10	USB connectors (2)	Allow you to connect USB devices to the system.
		The ports are USB 2.0-compliant.
11	System service tag	A slide-out label panel that allows you to record
		system information such as Service Tag, NIC, MAC
		address, and so on as per your need.

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