Dell PowerEdge SC 420 - Manual (Page 20)

Back-Panel Indicators and Features
Figure 2 -2 shows the back-panel indicators and features. Figure 2 -3 shows the indicators for the integrated network adapter and Table 2 -2 details the
conditions associated with the indicator codes.
Figure 2-2. Back-Panel Indicators and Features
Figure 2-3. NIC Indicators
Table 2-3. NIC Indicators
System Messages
System messages appear on the screen to notify you of a possible problem with the system. Table 2 -4 lists the system messages that can occur and the
probable cause and corrective action for each message.
Table 2-4. System Messages
Indicator
Type Indicator
Code Description
Activity Off When off at the same time that the link indicator is off, the NIC is not connected to the network or the NIC is disabled in the
System Setup screen. See "Using the System Setup Program" in the User's Guide.
Blinking Indicates that network data is being sent or received.
Link Off When off at the same time that the activity indicator is off, the NIC is not connected to the network or the NIC is disabled in the
System Setup screen. See "Using the System Setup Program" in the User's Guide.
Yellow 1000-Mbps connection
Orange 100-Mbps connection
Green 10-Mbps connection
NOTE: If you receive a system message that is not listed in Table 2 -4 , check the documentation for the application that is running when the message
appears or the operating system's documentation for an explanation of the message and recommended action.