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NIC indicator codes
Each NIC on the back of the system has indicators that provide information about the activity and link status. The activity LED indicator
indicates if data is flowing through the NIC, and the link LED indicator indicates the speed of the connected network.
Figure 10. NIC indicator codes
1
Link LED indicator
Table 13. NIC indicator codes
Status
Link and activity indicators are off.
Link indicator is green, and activity indicator is blinking
green.
Link indicator is amber, and activity indicator is blinking
green.
Link indicator is green, and activity indicator is off.
Link indicator is amber, and activity indicator is off.
Link indicator is blinking green, and activity is off.
Power supply unit indicator codes
AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The DC PSUs have an LED that serves as
an indicator. The indicator shows whether power is present or if a power fault has occurred.
22
Dell EMC PowerEdge R640 system overview
2
Activity LED indicator
Condition
The NIC is not connected to the network.
The NIC is connected to a valid network at its maximum port speed, and
data is being sent or received.
The NIC is connected to a valid network at less than its maximum port
speed, and data is being sent or received.
The NIC is connected to a valid network at its maximum port speed, and
data is not being sent or received.
The NIC is connected to a valid network at less than its maximum port
speed, and data is not being sent or received.
NIC identify is enabled through the NIC configuration utility.
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