Dell EMC PowerEdge T440 - Power Supply Unit Indicator Codes

Status Condition
Link indicator is green, and activity indicator is o. 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 o. 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 o. NIC identify is enabled through the NIC conguration 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 if a power fault has occurred.
Figure 11. AC PSU status indicator
1
AC PSU status indicator/handle
Table 10. 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.
Blinking green When the rmware of the PSU is being updated, the PSU handle blinks green.
CAUTION: Do not disconnect the power cord, or unplug the PSU when updating rmware. If
rmware update is interrupted, the PSUs do not function.
Blinking green and turns o When hot-plugging a PSU, the PSU handle blinks green ve times at a rate of 4 Hz and powers o. It
indicates a PSU mismatch regarding eciency, feature set, health status, or supported voltage.
CAUTION: If two PSUs are installed, both the PSUs must have the same type of label; for
example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of
PowerEdge servers is not supported, even if the PSUs have the same power rating. It results in
a PSU mismatch condition or failure to power on the system.
CAUTION: When correcting a PSU mismatch, replace only the PSU with the blinking indicator.
Swapping the PSU to make a matched pair can result in an error condition and unexpected
system shutdown. To change from a high output conguration to a low output conguration or
conversely, you must turn o the system.
22 Dell EMC PowerEdge T440 system overview