Back Panel Features - Dell PowerEdge 850 User Manual

NOTE:
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 The power button turns system power off and on.
indicator,
Power button
NOTICE:
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
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 on but in standby state, or when the system is off but is still connected to
the power source.
To exit from the standby state, briefly press the power button or click or move the mouse.
Diagnostic The diagnostic indicators aid in diagnosing and troubleshooting the system. For more information, see your Installation and
indicators (4) Troubleshooting Guide.
Connecting External Devices
When connecting external devices to your system, follow these guidelines:
Most devices must be connected to a specific connector and device drivers must be installed before the device operates properly. (Device drivers are
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normally included with your operating system software or with the device itself.) Check the documentation that accompanied the device for specific
installation and configuration instructions.
Always attach external devices while your system is turned off. Next, turn on any external devices before turning on the system (unless the
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documentation for the device specifies otherwise). If the system does not appear to recognize the device, try turning on the system before turning on
the device.
For information about individual connectors, see "I/O Connectors" in your Installation and Troubleshooting Guide. For information about enabling, disabling, and
configuring I/O ports and connectors, see "Using the System Setup Program."
Back-Panel Features
Figure 1-2 shows the back-panel features of the system.
Figure 1-2. Back-Panel Features
This indicator does not flash when SCSI hard drives are in use.
If you turn off the system using the power button and the system is running an ACPI-compliant operating system, the
"Using the System Setup Program" and the operating system's documentation.