Figure 9. AC power supply status indicator
1. AC power supply status indicator/handle
Convention Power Indicator
Pattern
Condition
A Green A valid power source is connected to the power supply and the
power supply is operational.
B Flashing green When updating the firmware of the power supply unit is being
updated, the power supply handle flashes green.
CAUTION: Do not disconnect the power cord or unplug the
power supply unit when updating firmware. If firmware
update is interrupted, the power supply units will not
function. You must roll back the power supply firmware by
using Life cycle controller. For more information, see Dell
Lifecycle Controller User’s Guide at dell.com/esmmanuals.
C Flashing green
and turns off
When hot-adding a power supply, the power supply handle flashes
green five times at 4 Hz rate and turns off. This indicates that there is
a power supply mismatch with respect to efficiency, feature set,
health status, and supported voltage. Replace the power supply with
a power supply that matches the capacity of the other power supply.
NOTE: For AC power supplies, use only PSUs with the Extended
Power Performance (EPP) label on the back. Mixing PSUs from
previous generations of Dell PowerEdge servers can result in a
PSU mismatch condition or failure to power on.
D Flashing amber Indicates a problem with the power supply.
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