Figure 9. AC PSU status indicator
1. AC PSU status indicator/handle
Table 9. AC PSU status indicators
Convention Power indicator
pattern
Condition
A Green A valid power source is connected to the PSU and the PSU is operational.
B Flashing green When the firmware of the PSU is being updated, the PSU handle flashes green.
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 turn off 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.
Dell PowerEdge R730 system overview 21
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