Windows 10: Processor keeps capping at 0.99ghz

Discus and support Processor keeps capping at 0.99ghz in Windows 10 Drivers and Hardware to solve the problem; Hello, I recently reinstalled Windows 10 on my laptop using my install media created using the creator on the website. There were no issues with my... Discussion in 'Windows 10 Drivers and Hardware' started by BradNunchr, Dec 14, 2015.

  1. Processor keeps capping at 0.99ghz


    Hello,

    I recently reinstalled Windows 10 on my laptop using my install media created using the creator on the website. There were no issues with my CPU capping or anything like that prior to the new install.

    So ive just realised my computer performing slow so i decided to check task manager and i see my CPU seems to be capping at 0.99 GHZ. I have checked my power options and ensured that the minimum and maximum processor states are at 100% on High Performance mode. My CPU normally runs at over 2.4 ghz. When i restarted my computer it was 2.4 ghz but soon after capped to 0.99ghz. I do not know why. I have taken some screenshots.

    Idle:

    Processor keeps capping at 0.99ghz [​IMG]



    Whilst running cpu stress program:

    Processor keeps capping at 0.99ghz [​IMG]




    What could be the problem, please help

    :)
     
    BradNunchr, Dec 14, 2015
    #1

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    I have a Nokia Lumia tablet that uses 8.1 RT and when I want to keep the cap lock on and tap the up arrow on the keyboard the key turns white but when I remove my finger it goes back to grey and won't keep cap lock on. If I switch to the full size touch
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    CharlieCrabb, Dec 14, 2015
    #2
  3. amit_mc Win User
    Future fantastic >> Question to the moderator and/or any nokia rep

    Dear one

    please keep in mind that only firmware alone will not be able to handle high cap memory cards. it needs a strong processor better RAM, more cache memory, power backup. of course one day will come when u will not need memory cards ur whole data will be on some
    website but too much time is needed for it so be happy wht we have .......
     
    amit_mc, Dec 14, 2015
    #3
  4. Processor keeps capping at 0.99ghz

    SOLVED: Just fixed it, I do not know why but my CPU caps on anything besides the power4gear poweroptions.

    Thanks
     
    BradNunchr, Dec 14, 2015
    #4
  5. I don't use any 3rd party software to manage power plans. They usually cause more harm than good.
     
    theveterans, Dec 14, 2015
    #5
  6. segin Win User
    I have the same ASUS Vivobook S550CB laptop, with the same Intel Core i5-3337U processor.

    I came to this thread looking for an answer, and also tried the "Power4Gear" app, which did nothing more than give me a fancy GUI around the built-in Windows power management settings. It required something else to actually solve the problem, and I figured out what:

    The problem is that the stock ACPI driver for Windows 10 doesn't properly read the ACPI tables for our laptop. This causes the Intel power management driver to malfunction, and the CPU speed to be capped.

    The solution is to install the ASUS ATK Package, which includes the "ATKACPI" driver, which is an ACPI driver designed for the ASUS Vivobook S550CB.

    You can find it here, under OS selection "Windows 10 64-bit", under subsection "ATK": https://www.asus.com/support/Downloa...ZMWwQes3Jh/45/


    Processor keeps capping at 0.99ghz [​IMG]


    After installing this driver and rebooting, I was able to keep my CPU speed at up to 2.54GHz (the i5-3337U can turbo up to 2.7GHz according to Intel ARK, it achieves that speed in Ubuntu Linux 15.10 which I dual boot, but only gets up to 2.54GHz or so under Windows. I don't care about the missing turbo speed, there's probably a good reason ASUS limits the CPU turbo.)


    Processor keeps capping at 0.99ghz [​IMG]


    OPTIONAL: Download the BIOS update with version 202. Extract the file S550CBAS.202 to the top directory of a FAT32-formatted flash drive. Reboot your computer and enter UEFI Setup using the DEL key. Go to the option that says "Start Easy Flash". You'll enter a screen with a list like "FS0", "FS1", etc. on the left, and files on the right. Select the numbered "FS" item that has the S550CBAS.202 file, then press the right arrow key to move the cursor to the files list on the right. Select the S550CBAS.202 file, and press Enter. Please wait while your laptop installs the updated BIOS/UEFI. If you get an error message saying "too old", then you already have the latest BIOS installed.

     
    segin, Feb 7, 2016
    #6
  7. segin Win User
    Addendum:

    I've done some experimenting and found that the Intel power management subsystem is interpreting the thermal power management settings BACKWARDS.

    Right-click your battery icon, and choose "Power Options"


    Processor keeps capping at 0.99ghz [​IMG]


    For your selected power plan, choose "Change plan settings"


    Processor keeps capping at 0.99ghz [​IMG]


    Select "Change advanced power settings".


    Processor keeps capping at 0.99ghz [​IMG]


    Go to the section "Intel Dynamic Platform and Thermal Framework Settings", and open the sub-heading "Config TDP Level":


    Processor keeps capping at 0.99ghz [​IMG]


    Note that for each power scenario (plugged in, or on battery), there are two options: "17W @ 1.8GHz" and "10W @ 1.0GHz". The default is "17W @ 1.8GHz". This works on boot, but you'll notice your machine eventually cap the CPU at 1GHz. My previous solution of installing the ASUS driver was broken by a recent Windows update that wasn't solvable by uninstalling and reinstalling the driver. However, I discovered that the Intel Power Management framework was interpreting this option BACKWARDS after the system has been running for some time.

    Set it to "10W @ 1.0GHz".

    Processor keeps capping at 0.99ghz [​IMG]


    Have Task Manager open on the Performance tab, showing CPU speed. Press "Apply" on the advanced power settings dialog, and watch your CPU act like normal, that is, as soon as you press Apply and tell Power Management to start capping your CPU at 1GHz, it actually stops capping it and you get your normal CPU clock speed back.

    You can leave this like this, but your machine will be somewhat slower during and right after boot, until the driver "breaks" and decides that it's Opposite World when it comes to obeying that setting.

    Yeah, it's weird, it makes no sense, but that's what works for me.
     
    segin, Mar 20, 2016
    #7
  8. Processor keeps capping at 0.99ghz

    segin is absolutely on the ball!

    i was experiencing the exact same problem with my intel core i3 3217u being capped at 1ghz. thank goodness for this thread and solutions!

    it's weird that Win10 is interpreting the intel dynamic platform and thermal framework settings backwards. and that setting it as shown corrects the problem!


    Processor keeps capping at 0.99ghz [​IMG]
    up load pictures
     
    ShadowVlican, Apr 5, 2018
    #8
Thema:

Processor keeps capping at 0.99ghz

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