Dell PowerEdge 2650 - Manual (Page 18)

Back-Panel Indicators and Features
Figure 2 -3 shows the back-panel features of the system. Table 2 -3 describes the back-panel features.
Figure 2-3. Back-Panel Features
Power Indicator Codes
The system has indicators on the front panel and the power supplies that signify system power status.
Power-Button Indicator Codes
l If you turn off the system using the power button and the system is running an ACPI-compliant operating system (such as
Microsoft® Windows® 2000), the system can perform an orderly shutdown before power is turned off.
l If the system is not running an ACPI-compliant operating system, power is turned off immediately after the power button is
pressed.
The button is enabled in the System Setup program. When disabled, the button can only turn system power on. For more information,
see the User's Guide and the operating system's documentation.
Power indicator Provides information on power status (see " Power Indicator Codes ").
CD and diskette
drive indicators Indicates read or write access to the respective drive.
hard-drive
indicators Provide information on the status of the respective hard drive (see " SCSI Hard-Drive Indicator Codes ").
NIC indicators Indicate whether the NIC has a valid link to the network (see " NIC Indicator Codes ").
Status LCD Can signify when the system is operating correctly or when the system needs attention (see " LCD Status Messages ").
System
identification button Can be used to identify a particular system (see " System Identification Indicators ").
NMI button Can be used to troubleshoot software and device driver errors when using certain operating systems. This button is often referred to
as a "force dump switch" and can be pressed using the end of a paper clip. When the option is enabled in the System Setup program
and the button is pressed, an NMI alerts the system.
Use this button only if directed to do so by qualified support personnel or by the operating system's documentation. For more
information, see the User's Guide and the operating system's documentation.
Table 2-3. Back-Panel Features
Component Description
Power supply indicators Provides information on power status (see " Power Indicator Codes ").
NIC indicators Provides information on NIC status (see " NIC Indicator Codes ").
System status indicator
connector Connects to an indicator that can signify when the system is operating correctly or when the system needs attention (see
"
System-Status Indicators ").
System identification
indicator Signifies when the system is operating correctly or when the system needs attention, and can identify a particular system (see
"
System Identification Indicators ").
System identification button Can be used to identify a particular system (see " System Identification Indicators ").