Dell PowerEdge R430 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.

This figure shows AC power supply unit status indicator or handle. — Figure 1. AC PSU status indicator

Table 1. Redundant AC PSU status indicatorThis table describes about AC PSU status indicator.
Convention	Power Indicator Pattern	Condition
A	Green	A valid power source is connected to the PSU and the PSU is operational.
B	Flashing green	When 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.
C	Flashing green and turns off	When 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.
D	Flashing amber	Indicates 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.
E	Not lit	Power is not connected.