About Your System; Front-Panel Features And Indicators - Dell PowerEdge R520 Owner's Manual

About Your System

Front-Panel Features And Indicators

Figure 1. Front-Panel Features and Indicators
Figure 2. Front-Panel Features and Indicators for a Software RAID System
Item Indicator, Button, or
Connector
1 Power-on indicator, power
button
2 NMI button
Icon Description
The power-on indicator lights when the system 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.
Used to troubleshoot software and device driver errors
when using certain operating systems. This button can be
pressed using the end of a paper clip.
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