Lenovo ThinkSystem SR860 V2 Maintenance Manual page 34

7 DC power LED (green)
Each hot-swap power supply unit comes with one AC and one DC power LED. When the DC power LED is lit,
it indicates that the power supply is supplying adequate dc power to the system. During normal operation,
both the AC and dc power LEDs are lit.
8 Power supply error LED (yellow)
When the power supply error LED is lit, it indicates that the power supply has failed.
ThinkSystem SR860 V2 Maintenance Manual
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