Table 32 NIC indicator codes
Status Condition
Link and activity indicators are off. The NIC is not connected to the network.
Link indicator is green, and activity indicator is blinking
green.
The NIC is connected to a valid network at its maximum port speed, and
data is being sent or received.
Link indicator is amber, and activity indicator is blinking
green.
The NIC is connected to a valid network at less than its maximum port
speed, and data is being sent or received.
Link indicator is green, and activity indicator is off. The NIC is connected to a valid network at its maximum port speed, and
data is not being sent or received.
Link indicator is amber, and activity indicator is off. The NIC is connected to a valid network at less than its maximum port
speed, and data is not being sent or received.
Link indicator is blinking green, and activity is off. NIC identify is enabled through the NIC configuration utility.
Power supply unit indicator codes
AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows
whether power is present or a power fault has occurred.
For more information about the PSU specifications, see the technical specifications for your system.
For information about the event and error messages generated during POST, see the Dell Event and Error Messages
Reference Guide at www.dell.com/openmanagemanuals.
Figure 19
AC PSU status indicator
1. AC PSU status indicator/handle
Table 33 AC PSU status indicator codes
Power indicator codes Condition
Green A valid power source is connected to the PSU, and the PSU is
operational.
Blinking amber Indicates a problem with the PSU.
Not illuminated Power is not connected to the PSU.
System diagnostics and indicator codes
R740xd Owner's Guide 37
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