Dell PowerEdge SC 420 - Manual (Page 5)

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System Overview
Dell™ PowerEdge™ SC420 Systems User's Guide
Front-Panel Features and Indicators
Back-Panel Features
System Features
Supported Operating Systems
Power Protection Devices
Other Documents You May Need
Obtaining Technical Assistance
This section describes the major hardware and software features of your system and provides information about the indicators on the system's front and back
panels. It also provides information about other documents you may need to set up your system and how to obtain technical assistance.
Front-Panel Features and Indicators
Figure 1 -1 shows the front-panel features and indicators of the system. Table 1 -1 describes some of these features and indicators. For more information about
indicator codes, see your Installation and Troubleshooting Guide.
Figure 1-1. Front-Panel Features and Indicators
Table 1-1. Front-Panel Buttons and Indicators
Back-Panel Features
Figure 1 -2 and Table 1 -2 provide information about the back-panel features and diagnostic indicators of the system. Figure 1 -3 and Table 1 -3 provide
information about NIC indicators. For more information about back-panel indicators, see your Installation and Troubleshooting Guide.
Figure 1-2. Back-Panel Features
Button/Indicator Description
Power button Turns system power off and on.
If you turn off the system using the power button, 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.
Power indicator Off indicates the system is off. Solid green indicates that the system is in a normal operating state. Amber blinking indicates that the
system is powering up. Solid amber indicates that the power supply is good.
To exit from a power-saving state, briefly press the power button or click or move the mouse.
For more information, see your Installation and Troubleshooting Guide.
Hard-drive activity
indicator Green blinking indicates data is being read from or written to the internal hard drives that are connected to the hard-drive controller.
Diskette drive
indicator Green light indicates disk-drive activity.