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Power supply unit indicator codes
AC and DC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows if
power is present or if a power fault has occurred.
Figure 179. Rear Accessed configuration - AC PSU status indicator
1. AC PSU handle
2. Socket
3. Release latch
Figure 180. Front Accessed configuration - AC PSU status indicator
1. AC PSU handle
2. Socket
3. Release latch
Table 111. AC and DC PSU status indicator codes
Power indicator codes
Green
Blinking amber
Not powered on
Blinking green
Blinking green and powers off
Condition
Indicates that a valid power source is connected to the PSU
and the PSU is operational.
Indicates an issue with the PSU.
Indicates that the power is not connected to the PSU.
Indicates that the firmware of the PSU is being updated.
CAUTION:
Do not disconnect the power cord or
unplug the PSU when updating firmware. If firmware
update is interrupted, the PSUs will not function.
When hot-plugging a PSU, it blinks green five times at a rate
of 4 Hz and powers off. This indicates a PSU mismatch due to
efficiency, 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
System diagnostics and indicator codes
205
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