A method includes identifying a plurality of power supplies connected for supplying power to a computer system, wherein the plurality of power supplies includes at least one redundant power supply in a standby mode. For each of the plurality of power supplies identified, the method determines a length of a power supply cable connected between the power supply and a power distribution unit for supplying power to the power supply. The method further includes placing one or more of the plurality of power supplies in an active mode in ascending order of the length of the cable connected to the power supply, and supplying power to the computer system using the one or more of the plurality of power supplies in the active mode.