Surface pro 4 - clock speed of CPU keeps the same

Anonymous
2016-08-03T03:19:10+00:00

After updating to windows 10 (1607), I find that the clock speed of the CPU keeps to be 2.92GHz when plugged, and to be 2.47GHz when using battery. My surface pro 4 has a core i5 CPU. It seems strange because the clock speed of CPU should change with the workload in the Task Manager. Does anyone have the same problem?

Surface | Surface Pro | Display and screen

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous
2016-08-31T01:11:30+00:00

Fixed with today's update. Thanks, MS!

NOTE: I had to reboot twice after updating. So if anyone is not seeing the fix try a restart.

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  1. Anonymous
    2016-08-06T19:15:28+00:00

    The attributes setting change allows the cpu power mgmt. to be available...

    HOWEVER

    The cpu clock speed is stuck in all modes, hence no change in behavior

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  2. Anonymous
    2016-08-06T12:45:36+00:00

    A friend of mine found a solution to the problem. Add the following to an empty text file and rename it as a .reg file:

    Windows Registry Editor Version 5.00

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\be337238-0d82-4146-a960-4f3749d470c7] "Attributes"=dword:00000002

    Run the file, and reboot. Once your computer has restarted, go to settings>system>power&sleep>Additional power settings>Change plan settings>Change advanced power settings. You'll notice that there's an option to set boost mode for battery mode and plugged in mode, that turbo boost is disabled for battery mode by default, and plugged in mode is set to aggressive by default. You can change these settings to whatever you want.

    After using an empty text file (notepad) to create a .reg file and running the file, Windows told me: 

    "The specified file is not a registry script. You can only import binary registry files within the registry editor."

    Did I do anything wrong?

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  3. Anonymous
    2016-08-06T12:15:14+00:00

    I just reinstalled the device immediately.

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  4. Anonymous
    2016-08-06T12:09:21+00:00

    Tried your way but nothing happens, did you restart or resume from hibernate after uninstall the "Surface Integration" device or just reinstall it immediately?

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