PPM in Windows 7 and Windows Server 2008 R2

Updated: October 19, 2012

Processor Power Management in Windows 7 and Windows Server 2008 R2

File name: ProcPowerMgmt Win7.docx
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Windows 7 and Windows Server 2008 R2 include updated support for ACPI processor power management (PPM) features, including support for processor performance states and processor idle sleep states on multiprocessor systems. This paper provides details of the support in Windows 7 and Windows Server 2008 R2, describes how PPM functions with the Windows 7 and Windows Server 2008 R2 power policy store, and provides guidelines for firmware developers and system designers.

The information in this white paper applies to the following operating systems:
Windows Server 2008 R2
Windows 7

Included in this white paper:

• Windows 7 Processor Power Management Functional Overview
• Implementing Processor Power Management for Windows 7
• Core Parking
• Processor Clocking Control
• Processor Power Management Validation Tools
• Processor Power Policy on Windows

See also:

• Microsoft Extended PSS ACPI Method Specification
• Processor Power Management in Windows Vista and Windows Server 2008
• Power Policy Configuration and Deployment in Windows
• Using PowerCfg to Evaluate System Energy Efficiency

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