Power Supply Lamps

The power supply on the rear of the server has three lamps. See Figure 5-5.

DC power lamp

Power status lamp

AC power lamp

Figure 5-5. Power Supply Lamp Locations

NOTE: The server equipped with an optional power unit can continue the operation with the normal power unit if the other power unit is defected (redundant function). The defected power unit can be replaced with a new one in the hot-swap mode without power interruption.

DC Power Lamp

If the power cord is connected to the AC inlet to supply AC power to the power unit, the lamp blinks green. When the power of the server is turned on, the lamp goes on green. If the lamp is not lit after turning on the power of the server, the power unit may be defected. Contact you service representative to replace the power unit.

Power Status Lamp

If a power supply failure (such as a fan performance problem, current limit, and overload voltage) is detected, this lamp goes on amber. Contact you service representative to replace the power unit.

AC Power Lamp

If the power cord is connected to the AC inlet to supply AC power to the power unit, the lamp goes on green. If the lamp is not lit after supplying AC power, the power supply bay may be defected. Contact you service representative to replace the power supply bay.

Problem Solving 5-27

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NEC 120Lg manual Power Supply Lamps, DC Power Lamp, Power Status Lamp, AC Power Lamp