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Dell PowerEdge R330 Owner's Manual

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Indicator codes for redundant power supply unit

Each AC power supply unit (PSU) has an illuminated translucent handle that indicates whether power is present or whether a power fault has occurred.
Figure 1. AC PSU status indicator
This figure shows AC power supply unit status indicator or handle.
  1. AC PSU status indicator or handle
Table 1. Redundant AC PSU status indicatorThis table describes about AC PSU status indicator.
ConventionPower Indicator PatternCondition
AGreenA valid power source is connected to the PSU and the PSU is operational.
BFlashing greenWhen the PSU firmware is being updated, the PSU handle flashes green.

CAUTION: Do not disconnect the power cord or unplug the PSU when updating firmware. If firmware update is interrupted, the PSUs will not function. You must roll back the PSU firmware by using Dell Lifecycle Controller. For more information, see Dell Lifecycle Controller User’s Guide at Dell.com/idracmanuals.

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 that there is a PSU mismatch with respect to efficiency, feature set, health status, and supported voltage.

CAUTION: For AC PSUs, use only PSUs with the Extended Power Performance (EPP) label on the back.

NOTE: Ensure that both the PSUs are of the same capacity.

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 in the PSU.

CAUTION: When correcting a PSU mismatch, replace only the PSU with the flashing indicator. Swapping the other 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.

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