System and method for determining power supply capability

An information handling system, comprising:

• a power supply unit comprising;
• a power supply;
• and
• a power supply capability analyzer comprising circuitry to:
• obtain a respective value for each of two or more environmental factors in the information handling system, the two or more environmental factors to be factors with potential to affect the operating capability of the power supply;
• determine, based at least in part on the respective values for each of the two or more environmental factors, an operating capability of the power supply that differs from a nominal operating capability specified for the power supply, the operating capability being defined in terms of power supply wattage;
• and
• a power control module comprising circuitry to:
• allocate power generated by the power supply to one or more other resources of the information handling system in accordance with the determined operating capability.

A power supply unit, comprising:

• a power supply;
• and
• a power capability analyzer comprising circuitry to:
• obtain a respective value for each of two or more environmental factors in the information handling system, the two or more environmental factors to be factors with potential to affect the operating capability of the power supply;
• determine, based at least in part on the respective values for each of the two or more environmental factors, an operating capability of the power supply that differs from a nominal operating capability specified for the power supply, the operating capability being defined in terms of power supply wattage;
• write a value to represent the determined operating capability of the power supply to capability to a location in memory that is accessible by a management controller;
• and
• notify the management controller that the value to represent the determined operating capability of the power supply has been written to the location in memory.