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Intel processor power management RRS feed

  • Question

  • Hello,

    I'm a Student and ask for support to:

    What options are offered by Windows 8.1 (or 7) to minimize energy consumption of Intel processors (preferably Haswell CPUs => eg Core i3/5/7, or Broadwell CPUs) by reducing the frequency and voltage and/or converting single/all cores of the processor in a sleep state? 

    Is this possible to manage out of an application program?

    Thank you

    Manfred

    Sunday, March 22, 2015 6:05 PM

Answers

  • Hi scratchM,

    You could adjust Processor performance and power option by using processor power policy and Processor power management validation tools such as powercfg command. However I didn’t found a Minimum processor state and Maximum processor state value specific to sleep mode.

    Processor power policy on Windows

    https://msdn.microsoft.com/en-us/library/windows/hardware/dn613985(v=vs.85).aspx

    Powercfg Command-Line Options

    https://msdn.microsoft.com/en-us/library/hh824902.aspx

    The link of Processor power policy on Windows applies to Windows 7, but I checked that and it doesn’t changed a lot in Windows 8.1

    I’m not sure about third party application but it is out of our recommendation.

    Regards

    D. Wu


    Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    • Marked as answer by scratchM Wednesday, March 25, 2015 7:50 PM
    Wednesday, March 25, 2015 8:30 AM
  • I do not think that the required functionality is available to general user. Consult it in MSDN forum/fora as well as with someone more knowledgeable in the field of Windows Internals.Regards

    Milos

    • Marked as answer by scratchM Wednesday, March 25, 2015 7:50 PM
    Sunday, March 22, 2015 8:13 PM

All replies

  • I do not think that the required functionality is available to general user. Consult it in MSDN forum/fora as well as with someone more knowledgeable in the field of Windows Internals.Regards

    Milos

    • Marked as answer by scratchM Wednesday, March 25, 2015 7:50 PM
    Sunday, March 22, 2015 8:13 PM
  • Hi scratchM,

    You could adjust Processor performance and power option by using processor power policy and Processor power management validation tools such as powercfg command. However I didn’t found a Minimum processor state and Maximum processor state value specific to sleep mode.

    Processor power policy on Windows

    https://msdn.microsoft.com/en-us/library/windows/hardware/dn613985(v=vs.85).aspx

    Powercfg Command-Line Options

    https://msdn.microsoft.com/en-us/library/hh824902.aspx

    The link of Processor power policy on Windows applies to Windows 7, but I checked that and it doesn’t changed a lot in Windows 8.1

    I’m not sure about third party application but it is out of our recommendation.

    Regards

    D. Wu


    Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    • Marked as answer by scratchM Wednesday, March 25, 2015 7:50 PM
    Wednesday, March 25, 2015 8:30 AM
  • Hi Milos, thank you for your feedback
    Wednesday, March 25, 2015 7:44 PM
  • Hi Deason Wu, thank you for your help and checking of possible changes of PPP from Windows 7 to Windows 8.1

    Wednesday, March 25, 2015 7:47 PM