Patent ID: 8583953

Claim:
A method comprising: detecting a first event at a first processing system of an information handling system having a plurality of system resources; in response to detecting the first event at the first processing system, determining a first power mode for a first system resource based on the first event, first state information indicative of a state of the first processing system, and second state information indicative of a state of a second processing system of the information handling system, wherein: the first power mode is one of an active power mode and a reduced power mode; the first system resource consumes power in the reduced power mode and consumes less power in the reduced power mode than in the active power mode; the first system resource comprises a hardware resource coupled to the first processing system and the second processing system via an interconnect; the first processing system and the second processing system are independent processing systems; the first processing system is coupled to a north bridge of the information handling system; the second processing system is coupled to a south bridge of the information handling system; and setting an operating power mode of the first system resource to the first power mode by coupling the first system resource to one of a plurality of voltage rails based on the first power mode, the setting comprising switching the operating power mode of the first system resource from one of the active power mode and the reduced power mode to the other of the active power mode and the reduced power mode.