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About Your System

Front-Panel Features And Indicators

Figure 1. Front-Panel Features and Indicators

Item

Indicator, Button, or

Icon

Description

 

Connector

 

 

 

 

 

 

1

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 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 if the information is

 

 

 

provided in the operating system documentation.

3

Video connector

 

Allows you to connect a VGA display to the system.

4

Health indicator

 

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).

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Dell R220 owner manual About Your System, Front-Panel Features And Indicators