46 Using the System Setup Program and UEFI Boot ManagerPower Management ScreenOption DescriptionPower Management(Active Power Controllerdefault)Options are OS Control, Active Power Controller,Custom, or Maximum Performance. For all but theCustom setting, the BIOS pre-configures the powersettings on this screen as follows:• OS Control sets the CPU power to OS DBPM, the fanpower to Minimum Power, and the memory power toMaximum Performance. In this setting, all processorperformance information is passed from the systemBIOS to the operating system for control. The operatingsystem sets the processor performance based onprocessor utilization.• Active Power Controller sets the CPU power to SystemDBPM, the fan power to Minimum Power, and thememory power to Maximum Performance. The BIOSsets the processor performance based onprocessor utilization.• Maximum Performance sets all fields to MaximumPerformance.If you select Custom, you can configure eachoption independently.CPU Power andPerformanceManagementOptions are OS DBPM, System DBPM, MaximumPerformance, or Minimum Power.Fan Power andPerformanceManagementOptions are Maximum Performance or Minimum Power.Memory Power andPerformanceManagementOptions are Maximum Performance, a specifiedfrequency, or Minimum Power.
