Back-Panel Features And Indicators - Dell PowerEdge 6850 System Installation Manual

Table 2-2. Front-Panel LED Indicators, Buttons, and Connectors
Indicator, Button, Icon Description
or Connector
Blue system status Does not operate when the bezel is removed. The LCD display indicates the status.
indicator
Amber system Does not operate when the bezel is removed. The LCD display indicates the status.
status indicator
LCD display Provides system ID, status information, and system error messages.
The LCD display lights during normal system operation. Both the systems management software and the identification
buttons located on the front and back of the system can cause the LCD to flash blue to identify a particular system.
The LCD display lights amber when the system needs attention due to a problem with power supplies, fans, system
temperature, or hard drives. See
NOTE:
whether the system has been powered on.
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
power button system, but the system is not powered on.
The power button controls the DC power supply output to the system.
NOTE:
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 The identification buttons on the front and back panels can be used to locate a particular system within a rack. When one of
identification button 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.
Use this button only if directed to do so by qualified support personnel or by the operating system's documentation.
Video connector Connects a monitor to the system.
Back-Panel Features and Indicators
Figure 2-2 shows the controls, indicators, and connectors located on the system's back panel.
Figure 2-2. Back-Panel Features and Indicators
"LCD Status
If the system is connected to AC power and an error has been detected, the LCD display flashes amber regardless of
If you turn off the system using the power button and the system is running an ACPI-compliant operating system, the
Messages" and Table 2-7 for more information about the messages.