Dell PowerEdge SC 420 - Manual (Page 6)

Table 1-2. Back-Panel Indicators
Figure 1-3. NIC Indicators
Table 1-3. NIC Indicators
System Features
Your system offers the following features:
l One of the following processors:
¡ Intel® Pentium® 4 processor with a minimum clock speed of at least 2.8 GHz, and front-side bus speed of at least 800 MHz and at least 1 MB of
internal cache
¡ Intel Celeron® processor with a minimum clock speed of at least 2.8 GHz, and front-side bus speed of at least 533 MHz and at least 256 KB of
internal cache
l A minimum of 256 MB of 400-MHz DDR II SDRAM memory, upgradable to a maximum of 4 GB 533-MHz DDR II SDRAM memory by installing 256-MB, 512-
Button/Indicator Description
Diagnostic indicators (4) Aids in diagnosing and troubleshooting the system. For more information, see your Installation and Troubleshooting Guide.
Indicator Normal Operation Error Condition
Link Green indicates that a 10-Mbps network connection exists.
Orange indicates that a 100-Mbps network connection exists.
Yellow indicates that a 1-Gbps (or 1000 Mbps) network connection
exists.
Off indicates that the NIC is not detecting a physical connection to the
network.
Activity Flashing or steady yellow indicates that the NIC is transmitting or
receiving network data. When off at the same time that the link indicator is off, the NIC is not
connected to the network.
NOTE: If the NIC is disabled in System Setup, both the link and activity indicators will be "off" regardless of whether an active network connection is present.
NOTE: Use the System Setup program to view processor information. See " Using the System Setup Program ."