Dell PE R720XD Owner's Manual page 15

Electrical indicator
Condition
example, voltage out of range, or a failed
power supply or voltage regulator).
Temperature indicator
Condition
The indicator blinks amber if the
system experiences a thermal error
(for example, a temperature out of
range or fan failure).
Memory indicator
Condition
The indicator blinks amber if a
memory error occurs.
PCIe indicator
Condition
The indicator blinks amber if a PCIe card
experiences an error.
Corrective Action
LED on the power supply. Re-seat the power supply by removing
and reinstalling it. If the problem persists, see
Corrective Action
Ensure that none of the following conditions exist:
* A cooling fan is removed or has failed.
* System cover, cooling shroud, EMI filler panel, memory-
module blank, or back-filler bracket is removed.
* Ambient temperature is too high.
* External airflow is obstructed.
See Getting Help.
Corrective Action
See the system event log or system messages for the location of the failed
memory. Reinstall the memory device. If the problem persists, see
Help.
Corrective Action
Restart the system. Update any required drivers for the PCIe card.
Re-install the card. If the problem persists, see
Getting Help.
Getting
Getting Help.
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