Dell PowerEdge R720 Owner's Manual - Page 11

Indicator, Button, or, Front-Panel Features and Indicators 3.5 Inch Chassis-PowerEdge R720xd

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Figure 3. Front-Panel Features and Indicators (3.5 Inch Chassis)-PowerEdge R720xd Figure 4. Front-Panel Features and Indicators (2.5 Inch Chassis)-PowerEdge R720xd Item Indicator, Button, or Icon Description Connector 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 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. Use this button only if directed to do so by qualified support personnel or by the operating system's documentation. 11

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Figure 3. Front-Panel Features and Indicators (3.5 Inch Chassis)—PowerEdge R720xd
Figure 4. Front-Panel Features and Indicators (2.5 Inch Chassis)—PowerEdge R720xd
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 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.
Use this button only if directed to do so by qualified
support personnel or by the operating system's
documentation.
11