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About Your System 23
NIC Indicator Codes
Figure 1-5. NIC Indicator Codes
Power Indicator Codes
An LED indicator on the power button provides information on system power
status.
The power supplies have indicators that show whether power is present or
whether a power fault has occurred.
• Not lit — AC power is not connected.
• Green — In standby mode, a green light indicates that a valid AC source is
connected to the power supply and that the power supply is operational.
When the system is on, a green light also indicates that the power supply is
providing DC power to the system.
1 link indicator 2 activity indicator
Indicator Indicator Code
Link and activity
indicators are off
The NIC is not connected to the network.
Link indicator is green The NIC is connected to a valid network link at 1000
Mbps.
Link indicator is amber The NIC is connected to a valid network link at 10/100
Mbps.
Activity indicator is green
blinking
Network data is being sent or received.
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