Back-Panel Features And Indicators - Dell PowerEdge 850 Installation And Troubleshooting Manual

Table 2-2. Front-Panel Indicators, Buttons, and Connectors
Indicator, Button, or Description
Connector
Blue and amber The blue system status indicator lights during normal system operation. The amber system status indicator flashes when the system
system status needs attention due to a problem with power supplies, fans, system temperature, or hard drives.
indicator
NOTE: If the system is connected to AC power and an error has been detected, the amber system status indicator flashes regardless
of whether the system has been powered on.
Power button Turns system power off and on.
If you turn off the system using the power button and the system is running an ACPI-compliant operating system, the system
l
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
l
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, and the operating system's documentation.
Power-on indicator The power-on indicator lights when the system power is on. When the indicator is off, the system is off.
To exit from a power-saving state, briefly press the power button or click or move the mouse.
Hard-drive activity Flashes when data is being read from or written to the internal SATA hard drives that are connected to the integrated controller.
indicator
USB connectors Connects USB 2.0-compliant devices 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