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Figure 8. AC power supply status indicator
1. AC power supply status indicator/handle
Convention Power Indicator
Pattern
Description
A Green A valid power source is connected to the power supply and the
power supply is operational.
B Flashing green When 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. See Dell Lifecycle Controller User’s
Guide at dell.com/esmmanuals.
C Flashing green
and turns off
When hot-adding a power supply unit, 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 power supply.
CAUTION: For AC power supplies, use only PSUs with the
Extended Power Performance (EPP) label on the back. Mixing
PSUs from previous generations of PowerEdge servers can
result in a PSU mismatch condition or failure to power on.
D Flashing amber Indicates a problem with the power supply unit.
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