Performance optimizer for undersized power adapters

An information handling system, comprising:

• an embedded controller configured to:
• remove a first power setting of the information handling system in response to a determination that a power adapter plugged in the information handling system is undersized;
• determine a second power setting based on a power rating of the power adapter;
• and
• transmit an advanced configuration and power interface (ACPI) command to a basic input/output system (BIOS) to set the information handling system to the second power setting;
• and
• the BIOS configured to:
• determine an offset value for a total graphics power based on the power rating of the power adapter subsequent to receipt of the ACPI command;
• and
• notify a graphics processing unit of the offset value.

A non-transitory computer-readable medium to store instructions that are executable to perform operations comprising:

• in response to determining that a power adapter plugged into an information handling system is undersized, removing a first power setting of the information handling system;
• determining a second power setting based on a power rating of the power adapter;
• transmitting an advanced configuration and power interface (ACPI) command to a basic input/output system (BIOS) to set the information handling system to the second power setting;
• subsequent to receiving the ACPI command, determining, by the BIOS, an offset value to adjust a base total graphics power, wherein the offset value is based on the power rating of the power adapter;
• and
• notifying the graphics processing unit of the offset value.