Power Supply And Power Consumption - Inspur NF8480M5 User Manual

9.21 Power Supply and Power Consumption

9.21.1 Power Supply Redundancy
BMC usually supports PSU Redundancy, which means if one or more PSUs cannot normally
output power, server will work normally powered by other power supply.
9.21.2 PSU Active Standby
In the case of meeting the normal work, BMC provides a way to manually set the power
supply to standby to improve power conversion efficiency.
PSU defaults to Activate-Activate mode, and if it need switch to Active-Standby mode, as the
power supply is critical, the work need to do under the guidance of professional engineer.
In the case of meeting business power consumption, reduce part of the power supply by
0.3V, suppress the standby current output by the voltage difference, and the system will
be powered by the main power system. The power supply is in a hot standby state, once
the main power supply is abnormal, standby power will switch to the main power supply
smoothly without affecting the service.
Conditions that standby power switches to the main power:
1. Main power supply is pulled out;
2. Main power supply output voltage is low or no output;
3. Main power supply temperature is too high, input loss, overcurrent, or overvoltage;
4. System power as a percentage of main power supply rated power reaches the upper limit.
Figure 44 PSU Active Standby
BMC Settings
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