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Power policy configuration

Connected standby support has significant impact across all system components: hardware, devices, drivers, apps, and Windows itself. Several power policy behaviors are changed in Windows if a PC implements connected standby instead of the traditional ACPI Sleep (S3) state.

In this section


Display, sleep, and hibernate idle timers

A system that can enter the traditional ACPI Sleep (S3) state implements both a display idle time-out and a sleep idle time-out. The reason for providing two separate time-outs is to allow the system to stay turned on and fully running, but save power by turning off the display.

Advanced power settings

Starting with Windows Vista, Windows has built-in extensibility for power policy settings. The purpose of this support is to allow device vendors and software developers to extend the power policy model to their own hardware and applications.

Windows OEM policy for power settings

In a connected standby system, the number and type of power policies that the system manufacturer can configure is greatly reduced, compared to a system that uses the traditional ACPI Sleep (S3) and Hibernate (S4) states.

Other system power management behaviors

Windows power management has other changed behaviors in a connected standby system, compared to a system that supports the ACPI Sleep (S3) and Hibernate (S4) power states.




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