Dell PowerEdge 2950 Hardware Owner's Manual (PDF) - Page 13

Front-Panel Features and Indicators, Table 1-2., Buttons, and Connectors, Indicator - drivers

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Front-Panel Features and Indicators Figure 1-1 shows the controls, indicators, and connectors located behind the optional rack bezel on the system's front panel. Figure 1-1. Front-Panel Features and Indicators 1 2 3 4 5 6 7 8 0 2 4 1 3 5 Table 1-2. Front-Panel LED Indicators, Buttons, and Connectors Item Indicator, Button, or Connector Icon 1 Power-on indicator, power button 2 NMI button 3 System identification button Description The power-on indicator lights when the system power is 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. 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. 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 LCD panel on the front and the blue system status indicator on the back blink until one of the buttons is pushed again. About Your System 13

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About Your System
13
Front-Panel Features and Indicators
Figure 1-1 shows the controls, indicators, and connectors located behind the optional rack bezel on the
system's front panel.
Figure 1-1.
Front-Panel Features and Indicators
4
5
0
2
3
1
6
5
4
3
2
1
8
7
Table 1-2.
Front-Panel LED Indicators, Buttons, and Connectors
Item
Indicator, Button, or Connector
Icon
Description
1
Power-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.
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.
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.
3
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 LCD panel
on the front and the blue system status indicator on the
back blink until one of the buttons is pushed again.