Dell PowerEdge 1800 - Manual (Page 14)

14
Indicators, Codes, and Messages
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Power-on indicator The power-on indicator lights when the system power is
on. The power-on indicator blinks when power is
available to the system, but the system is not powered
on.
The power button controls the DC power supply output
to the system.
NOTE:
If you turn off the system using the power button
and the system is running an ACPI-compliant operating
system, the system performs a graceful shutdown before
the power is turned off. If the system is not running an
ACPI-compliant operating system, the power is turned off
immediately after the power button is pressed.
System identification
button The identification buttons on the front and back panels
can be used to locate a particular system within a rack.
When one of these buttons is pushed, the blue system
status indicator on the front and back blinks until one of
the buttons is pushed again.
USB connectors Connects USB 2.0-compliant devices to the system.
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.
NOTE:
Use this button only if directed to do so by qualified
support personnel or by the operating system's
documentation.
Table 2-2. Front-Panel LED Indicators, Buttons, and Connectors (continued)
Indicator, Button,
or Connector Icon Description