Power supply predictive failure detection

An apparatus comprising:

• a measurement module configured to measure, during a time interval, input power and output power for each of a plurality of loads of a power supply;
• a calculation module configured to calculate, for each of the plurality of loads, a power supply efficiency, each power supply efficiency calculated using the input power and output power measured for the load;
• a comparison module configured to compare, for the time interval, each calculated power supply efficiency at a load of the plurality of loads with a baseline power supply efficiency of the power supply at a corresponding load;
• a determination module configured to determine, based on the comparing, that a difference between a calculated power supply efficiency and a corresponding baseline power supply efficiency is above an efficiency threshold;
• and
• an alert module configured to transmit an alert in response to the determining,
• wherein at least a portion of said modules comprises hardware circuits, a programmable hardware device and/or code, the code stored on non-transitory computer readable storage media.

A system comprising:

• a power supply;
• and
• a computing device comprising the power supply, the computing device comprising:
• a measurement module configured to measure, during a time interval, input power and output power for each of a plurality of loads of the power supply;
• a calculation module configured to calculate, for each of the plurality of loads, a power supply efficiency, each power supply efficiency calculated using the input power and output power measured for the load;
• a comparison module configured to compare, for the time interval, each calculated power supply efficiency at a load of the plurality of loads with a baseline power supply efficiency of the power supply at a corresponding load;
• a determination module configured to determine, based on the comparison, that a difference between a calculated power supply efficiency and a corresponding baseline power supply efficiency is above an efficiency threshold;
• and
• an alert module configured to transmit an alert in response to the determining,
• wherein at least a portion of said modules comprises hardware circuits, a programmable hardware device and/or code, the code stored on non-transitory computer readable storage media.