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Intel turbo boost does not work after upgrading to Windows 10 2004

Anonymous
2020-06-14T04:39:07+00:00

Hi,

Just now my computer received the Windows 10 2004 update and I installed it. The original version is Windows 10 1909. Just after finishing the installation I notice that my Intel i9-9900K CPU does not turbo boost anymore. The maximum CPU frequency is locked to 3.6 GHz, while before upgrading it can go to 4.7-4.8 GHz. I have not applied any overclocking settings in my motherboard. CPU virtualization is turned off. I install Intel XTU and find that NO throttling is applied.

So why does my CPU don't turbo boost anymore after the upgrade?

Windows for home | Windows 10 | Devices and drivers

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  1. Anonymous
    2020-08-15T11:21:46+00:00

    It looks like like the CPU core parking has been disabled in the power plan.

    You can try to re-enable it with the "Disable CPU Core Parking Utility".

    Edit: Sadly this doesn't resolve the issue in my case. Even when I run an application with high CPU load on one virtual CPU, the frequency remains at the base frequency plus 133 MHz (in my case with Core i7-860) for all cores.

    Edit2: I found out the solution: Turbo Boost doesn't work with Hyper-V. With the following command the system runs at full speed again:

    bcdedit /set {current} hypervisorlaunchtype off

    Edit3: I had another system (Core i9-9880H, that wouldn't go beyond 2.3 GHz). I unlocked SpeedShift with the tool "Quick CPU" by setting the maximum allowed multiplier to 48. Now I get the full 4.8 GHz, when needed.

    10+ people found this answer helpful.
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  2. Anonymous
    2020-06-14T05:14:24+00:00

    HI Cloudy. I'm G Greg, an installation specialist, 10 years awarded Windows MVP, and Volunteer Moderator, here to help you.

    1. If this was caused by a Version Update then for 10 days you can roll it back in Settings>Update & Security>Recovery and then hide it until it matures using the Hide Updates Tool which is explained more here:

    https://www.howtogeek.com/223864/how-to-uninsta....

    If that doesn't work you can also Go Back in Repair Mode as shown here:

    https://www.tenforums.com/tutorials/2294-advanc...

    1. Update the Intel drivers from the PC or motherboard maker's Support Downloads web page.

    If these are not sufficient download and run the Intel Driver Update Utility:

    http://www.intel.com/content/www/us/en/support/...

    1. Troubleshoot Intel Turbo Boost:

    https://www.thewindowsclub.com/intel-turbo-boos...

    I hope this helps. Feel free to ask back any questions and keep me posted. If you'll wait to rate whether my post resolved your problem, I will keep working with you until it's resolved.

    ______________________________________________

    Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

    4 people found this answer helpful.
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