Convention
Power indicator
pattern
Condition
C
Flashing green
and turns off
When hot-adding a PSU, the PSU handle flashes green five times at
4 Hz rate and turns off. This indicates a PSU mismatch with respect
to efficiency, feature set, health status, and supported voltage.
NOTE: Ensure that both the PSUs are of the same capacity.
CAUTION: For AC PSUs, use only PSUs with the Extended
Power Performance (EPP) label on the back.
NOTE: Mixing PSUs from previous generations of Dell
PowerEdge servers can result in a PSU mismatch condition or
failure to turn the system on.
D
Flashing amber
Indicates a problem with the PSU.
CAUTION: When correcting a PSU mismatch, replace only the
PSU with the flashing 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
configuration to a low output configuration or vice versa, you
must power down the system.
CAUTION: AC PSUs support both 220 V and 110 V input
voltages with the exception of Titanium PSUs, which support
only 220 V. When two identical PSUs receive different input
voltages, they can output different wattages, and trigger a
mismatch.
CAUTION: If two PSUs are used, they must be of the same type
and have the same maximum output power.
CAUTION: Combining AC and DC PSUs is not supported and
triggers a mismatch.
E
Not lit
Power is not connected.
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