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Dell PowerEdge C4130 Owner's Manual

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Power supply unit indicator codes

AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows whether power is present or a power fault has occurred.
Figure 1. AC PSU status indicator
This figure shows AC PSU status indicator/handle.
  1. AC PSU status indicator/handle
Table 1. AC PSU status indicatorsThis table describes the AC PSU status indicators and what condition is the PSU when the power indicator light is green, flashing green, flashing amber, and when it is not lit.
ConventionPower indicator patternCondition
AGreenA valid power source is connected to the PSU and the PSU is operational.
BFlashing greenWhen the firmware of the PSU is being updated, the PSU handle flashes green.
CFlashing green and turns offWhen 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.

DFlashing amberIndicates 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.

ENot litPower is not connected.
Figure 2. DC PSU status indicator
This figure shows DC PSU unit status indicator.
  1. DC PSU status indicator

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