MANAGING THE OPERATION OF POWER SUPPLY UNITs (PSUs)

A hardware memory device having program instructions stored thereon that, upon execution by a Baseband Management Controller (BMC) of an Information Handling System (IHS), cause the BMC to:

• identify a first mismatch between a first line status of a first input line of a first Power Supply Unit (PSU) and a second line status of a second input line of a second PSU, wherein the first and second PSUs are configured to provide power to the IHS, and wherein the second PSU provides a secondary bias to the first PSU;
• disable the first PSU in response to the mismatch;
• and
• enable the first PSU in response to an evaluation of the first input line without loss of the secondary bias.

An Information Handling System (IHS), comprising:

• a first Power Supply Unit (PSU);
• a second PSU coupled to the first PSU and configured to provide a secondary bias to the first PSU;
• and
• a Baseband Management Controller (BMC) coupled to the first and second PSUs, wherein the BMC is configured to:
• identify a mismatch between a first line status of a first input line of the first PSU and a second line status of a second input line of the second PSU;
• disable the first PSU in response to the mismatch;
• and
• enable the first PSU in response to an evaluation of the first input line without loss of the secondary bias by the first PSU, wherein to perform the evaluation, the first PSU is configured to determine that:
• a voltage at an input voltage at the first input line drops from a first high-voltage level to a low-voltage level, and subsequently rises from the low-voltage level to a second high-voltage level.