The ThrottleStop Guide

Discussion in 'Hardware Components and Aftermarket Upgrades' started by unclewebb, Nov 7, 2010.

  1. unclewebb

    unclewebb ThrottleStop Author

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    @kakashidinho - PROCHOT stands for processor hot and if your laptop is set to 97°C, it will start slowing down to prevent the CPU from exceeding that temperature. It might go a degree or two beyond 97°C but that is still less than 100°C which Intel says is the maximum safe operating temperature so no worries.

    I did some testing and on my laptop, the turbo multipliers in TS seemed to be working correctly after resuming from sleep or when switching profiles. For your laptop, I would leave the turbo multipliers at their default settings. If the cooling system is not adequate, set the turbo power limit to 40 Watts, enable the Clamp option and let the CPU manage itself. It will automatically reduce the multiplier so power consumption and heat do not become a problem.

    Prime95 is not a great laptop testing tool. It consumes far more power than most laptops are designed for so you usually get immediate power limit (PL2) or (PL1) throttling, or EDP throttling or temperature throttling. I like Prime95 but on a laptop, maybe only run 2 or 4 threads of it and not 8. Watch Limit Reasons when testing to see what is causing any throttling.
     
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  2. plee82

    plee82 Notebook Evangelist

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    Wow I was researching why I had a BD Prochot flag on my MSI GT62VR 6RE and finally figured out. If I unplug/plug charger, the BD Prochot is flagged. Very weird.
     
  3. link626

    link626 Asus GL502VM, Lenovo Y580, Asus K53TA

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    my PROCHOT is set to 100c. When I am encoding with Adobe Premiere, gpu and cpu work together, and my cpu goes to 100c, even 101c, and Turbo Boost doesn't want to come down.

    6700hq Max turbo is 3.1ghz on 4 cores, and hwinfo64 says there's thermal throttling, but it only drops to 3ghz, and it keeps staying between 99-101c.
    One time, my laptop auto-shutdown while i was encoding, as it didn't throttle enough.

    How do I limit Turbo Boost multiplier? Can throttlestop do that?

    I want to limit to 28x or 29x
     
    Last edited: Sep 10, 2017
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  4. unclewebb

    unclewebb ThrottleStop Author

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    @plee82 - Some laptops use BD PROCHOT which forces the CPU to run like an 800 MHz slug when on battery power. I would feel ripped off if my shiny new laptop was slower than a 10 year old laptop that was sitting in the closet collecting dust.

    @link626 - Intel designs their CPUs so they use as much turbo boost as possible, all of the time. I like that feature. Is there anyway you can improve your cooling? That is the real problem. If not then click on the FIVR button and try lowering the Turbo Ratio Limits a few notches. If your turbo power limits are unlocked, reducing the PL1 limit should prevent your CPU from running continuously at its full 100°C rated temperature.
     
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  5. plee82

    plee82 Notebook Evangelist

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    It goes BD Prochot for like 0.5sec when I unplugged and goes back up to full performance.
     
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  6. link626

    link626 Asus GL502VM, Lenovo Y580, Asus K53TA

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    in FIVR, reset turbo button does not work.
    I have to manually reset each multiplier.

    Is this a bug?
     
    Last edited: Sep 11, 2017
  7. Falkentyne

    Falkentyne Notebook Prophet

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    I've seen some cases where changing the 4 multipliers to the same value and hitting "apply" doesn't set the full speed bin, but instead sets it lower than it should be. This usually happens when going from a higher multiplier to a lower one then trying to go back to a higher one. I think some limit is being set in a MSR that is overwriting Throttlestop attempt.

    To avoid this problem, uncheck "overclock" tab, change the multipliers, re-check overclock tab again, then hit apply. This has always worked.
     
  8. unclewebb

    unclewebb ThrottleStop Author

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    Yes.

    I did not know how to read the default multipliers from the CPU when I originally wrote the FIVR code. I am still not 100% sure. I do not have access to any relevant documentation from Intel. This is why the Reset Turbo feature was never finished. This is not really an end of the world kind of bug but it is a bug and I will try to remember to get this fixed up for the next release.

    @plee82 - Dell used to use Clock Modulation throttling on many of their laptops when a user switched from AC to DC. Pulling the plug while running Prime95 would be pretty harsh on a battery so some built in throttling during this transition is probably a good thing. Temporary use of BD PROCHOT to slow the CPU down is OK but I think some manufacturers "forget" to disable BD PROCHOT so the CPU is left stuck at 800 MHz indefinitely. That's not good but it can be easily fixed by using ThrottleStop.
     
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  9. Tomatot

    Tomatot Notebook Guru

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    http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/page-353#post-10086507

    http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/page-353#post-10086826

    Hi, I still have this bug. Not every time but randomly, when i unplugged my computer, I see the icon in the icon tray sticking to "1" (when it's supposed to switch to 2), and when I get nearby it, it disappears. Then I can start again ThrottleStop and it goes to my profile 2. So it's exactly the bug the guy was having 2 years ago.

    I have a Dell XPS 13 with these specs : i5 6200U, 8GB, 256GB, Full HD. I'm running Windows 10.
    Here's my ThrottleStop config : https://pastebin.com/iVMnSr57

    + Screenshots :
    http://prntscr.com/gkep5j
    http://prntscr.com/gkepci

    By the way, I've discovered this program only a few weeks ago and I'm loving it. It's an amazing job, so thanks a lot.
     
    Last edited: Sep 12, 2017
  10. unclewebb

    unclewebb ThrottleStop Author

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    @Tomatot - I think I found the main source of ThrottleStop's icon issues. I have been programming with a very old version of Visual C++ from the 1990s so I have no one to blame but myself. I should have updated years ago. The icons being created are not fully compatible with Windows 7, 8 or 10. I am in the process of switching to a much newer version of Visual Studio so these long time icon issues should finally go away.

    In the mean time, try cleaning the WIndows Icon Cache as explained here.

    http://www.digitalcitizen.life/how-clean-notification-area-icon-cache

    Download and run the .bat file from that site. This is mentioned in the ReadMe file that is in the ThrottleStop folder. I am using Windows 10 and my icon and profile are switching back and forth between 1 and 2 when I switch from AC to battery power without any issues.

    Almost fall here. Once I get all the yard work done and watch some playoff baseball, I will have more time for TS.

    Thanks for the words of encouragement. That will help get me back working on project TS. :vbthumbsup:
     
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