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12 About Your System
Front-Panel Features and Indicators
Figure 3-1. Front-Panel Features and Indicators
Item Indicator, Button, or
Connector
Icon Description
1Power-on indicator/
power button
The power-on indicator lights when the
system power is on.
The power button controls the DC
power supply output to the system.
When the system bezel is installed, the
power button is not accessible.
NOTE: When powering on the system, the
video monitor can take from several
seconds to over 2 minutes to display an
image, depending on the amount of
memory installed in 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 using 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.
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