• Windows 10 system overheating and CPU Core Parking

    Posted on April 21, 2016 at 10:34 CDT by • Comment in the Forums

    Another important note from CH:

    I am writing to you this email to bring to your attention something that I believe a lot of your readers with older PCs are interested in finding out.

    It seems that Microsoft removed the CPU Core Parking functionality in Windows 10, which for users not interested in gaming and using their computers most of the time for browsing and using Office applications creates an overheating problem for little or no reason. This is particularly a problem for users having Intel i7 CPUs any generation, possible other variations like i5 or i3.

    Briefly, for those who are not aware of what this means, in Windows 7 the CPU cores not in use were ‘’parked’’ by the built-in Power Management, keeping active only a limited number of cores when the load did not require full power. In Windows 10 this functionality is no longer available by default, unless the registry is modified to mirror the Windows 7 registry for this functionality.

    I provided the solution in this thread

    https://social.technet.microsoft.com/Forums/ie/en-US/8d6085d8-2c26-426c-87ac-2ba189b77aa5/core-parking-not-working-after-upgrade?forum=win10itprohardware

    few months ago and it looks like it was accepted as definitive by the Microsoft moderators and also by the end users who had no further comments.

    In addition to what I posted on the Microsoft Forum, I normally set the maximum speed of the CPU in Power Management to 99% and the CPU Fan to Passive to avoid the built-in overclocking which is officially designated as Turbo Mode by Intel. This further reduces the heat generated by the CPU when the load does not require the CPU to work at full load.

    I am expecting this tuning to significantly extend the life of the older CPUs and motherboards.

    The newer motherboards using the Skylake CPUs may have other functionality built-in the CPU or chipset technology to mitigate the overheating effects mentioned above, although I don’t have any information if this is the case.

    P.S. By setting the Power Plan in Windows 7 to High Performance, the CPU Core Parking is disabled. Only the Balanced (default) or the Power Saver plans have the Core Parking functionality enabled by default. The users with Windows 7 installed by the manufacturer may have custom power plans which need to be assessed individually. My references are only to the Microsoft power plans which are built in Windows. In Windows 10, the default Balanced Power Plan does not enable CPU Core Parking.

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