Back-panel features, Nic indicators – Dell PowerEdge 850 User Manual
Page 93
Back-Panel Features
shows the back-panel features of the system.
Figure 2-2. Back-Panel Features
NIC Indicators
Figure 2-3. NIC Indicators
System
identification
button
You can use the system identification buttons on the front and back panels to locate a particular system within a rack. When
one of these buttons is pushed, the blue system status indicators on the front and back panels blink until one of the buttons is
pushed again.
You can also use the systems management software to cause the indicators to flash to identify a particular system.
Hard-drive
indicator
The green hard-drive activity indicator flashes when the SATA hard drives are in use.
NOTE:
This indicator does not flash when SCSI hard drives are in use.
NMI button
The NMI button is 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.
USB connectors
Connect USB 2.0-compliant devices to the system.
Video connector
Connects a monitor to the system.
Power-on
indicator,
Power button
The power button turns system power off and on.
NOTICE:
If you turn off the system using the power button and the system is running an ACPI-compliant operating system, the
system can perform an orderly shutdown before power is turned off. If the power button is pressed for more than 4 seconds,
the system power will turn off regardless of the current operating system state. If the system is not running an ACPI-compliant
operating system, power is turned off immediately after the power button is pressed.
The power button is enabled in the System Setup program. When disabled, the button can only turn the system power on. For
more information, see "Using the System Setup Program" in your User's Guide.
The power-on indicator lights or blinks to indicate the status of power to the system.
The power-on indicator lights when the system is on. The indicator is off when the system is off and power is disconnected from
the system. The indicator blinks when the system is off but is connected to the power source.
Diagnostic
indicators (4)
The diagnostic indicators aid in troubleshooting the system. For more information, see "