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About Your System
Front-Panel Features And Indicators
The following topic describes the front-panel features and indicators of the Dell DR4100 system.
Figure 1. Front-Panel Features and Indicators
Item Indicator, Button, or
Connector
Icon Description
1 Diagnostic indicators The diagnostic indicators light up to display error status.
2 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 pressed, the system status
indicator on the back 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 the iDRAC (if not disabled in F2 iDRAC setup)
press and hold the button for more than 15 seconds.
3 Power-on indicator, power
button
The power-on indicator lights when the system power is
on. The power button controls the power supply output to
the system.
NOTE: On Advanced Configuration and Power
Interface (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.
4 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.
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