Real-time communication of power supply unit power loading status

A method comprising:

• providing, by a power supply unit, power to components of an information handling system;
• monitoring, by power monitoring circuitry, the provided power;
• determining whether the provided power exceeds one of a plurality of threshold voltages during a respective one of a plurality of time periods;
• providing a digital value on one of a plurality of pins based on one of the threshold voltages being exceeded during the corresponding time period;
• detecting, by digital-to-analog circuitry, the digital value on one of the pins;
• providing one of a plurality of quantized voltages, wherein each of the quantized voltages corresponds to a different one of the pins;
• receiving, by a motherboard of the information handling system, the one of the quantized voltages;
• and
• activating a throttling operation based on the received one of quantized voltages.

An information handling system comprising:

• a power supply unit to provide power to components of the information handling system, the power supply unit including:
• power monitoring circuitry to:
• determine whether the provided power exceeds one of a plurality of threshold voltages during a respective one of a plurality of time periods;
• provide a digital value on a first pin of a plurality of pins if the threshold voltages are not exceeded during the corresponding time periods;
• and
• provide the digital value on one of the remaining pins if one of the threshold voltages is exceeded during the corresponding time period;
• and
• digital-to-analog circuitry to communicate with the power monitoring circuitry, the digital-to-analog circuitry to:
• detect the digital value on one of the pins;
• and
• provide one of a plurality of quantized voltages, wherein each of quantized voltages corresponds to a different one of the pins, wherein a first quantized voltage corresponds to the threshold voltages not being exceeded during the corresponding time periods;
• and
• a motherboard to communicate with the power supply unit, the motherboard to:
• receive the one of the quantized voltages;
• in response to the received quantized voltage being the first quantized voltage, determine that no action is needed;
• and
• in response to the received quantized voltage being one of the remaining quantized voltage, activate a throttling operation based on the received one of quantized voltages.