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Power supply unit indicator codes
Each AC power supply unit (PSU) has an illuminated translucent handle and each DC PSU (when available) has an LED that serves as an indicator to show whether power is present or a power fault has occurred.
Figure 11. AC PSU status indicator
1.AC PSU status indicator/handle
Convention | Power indicator | Condition |
| pattern |
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A | Green | A valid power source is connected to the PSU and the PSU is |
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| operational. |
B | Flashing green | When the firmware of the PSU is being updated, the PSU handle |
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| flashes green. |
C | Flashing green | When |
| and turns off | 4 Hz rate and turns off. This indicates that there is a PSU mismatch |
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| with respect to efficiency, feature set, health status, and supported |
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| voltage. Replace the PSU with a PSU that matches the capacity of |
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| the other PSU. |
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| CAUTION: For AC PSUs, use only PSUs with the Extended |
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| Power Performance (EPP) label on the back. Mixing PSUs from |
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| previous generations of Dell PowerEdge servers can result in a |
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| PSU mismatch condition or failure to power on. |
D | Flashing amber | Indicates a problem with the PSU. |
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