The ThrottleStop Guide

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

  1. Beempje

    Beempje Notebook Enthusiast

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    Hi all,

    I've been playing around with ThrottleStop (great work btw unclewebb!) since I got my new laptop last week (Dell Precision 5520, if that's relevant). I've been using TS to undervolt my CPU, to keep it cool(er) and keep the fans quiet.

    But I'm having some trouble understanding what the Turn On/Off button actually does. Or rather, it seems like TrottleStop is always on, even when it should be off. I tried booting fresh (power down completely) with TS disabled. When I start TS the taskbar icon is green, meaning it should be off (right?) and monitoring only. However when I open TS and select a profile, I can see my CPU speeds responding to it, even though I haven't touched the Turn On button yet. Can anyone shed some light on what exactly the On/Off button does/doesn't control?

    Another issue I'm having is when playing a game (Cities: Skylines). When I run TS in the background, even with voltage settings at default, my entire system freezes and reboots when the temperature of the CPU and GPU get to 70-75C. As soon as I hear the fans kick into high gear the system crashes. When I run the game without TS everything seems to run fine, albeit somewhat hot. I initially thought maybe the CPU needed more power than I was letting it have (because of the undervolting), but if I look at the logs the package power right before the crash is only around 11-12W. And even when I run a profile with voltage settings at default, the crash occurs. It can't be the temperatures either, since it runs fine without TS.

    Anyone have an idea what might be causing this?
     
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  2. Vasudev

    Vasudev Notebook Prophet

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    Please provide the CPU specs? Is it ULV chip?
     
  3. Beempje

    Beempje Notebook Enthusiast

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    Oh right, sorry. The CPU is an Intel i7-7820HQ.
     
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  4. Vasudev

    Vasudev Notebook Prophet

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    Thanks. Did you update the BIOS to latest one available as of now?
     
  5. Beempje

    Beempje Notebook Enthusiast

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    I did. Just checked if I'm on the latest version, which I am (did a BIOS update last week).
     
  6. Vasudev

    Vasudev Notebook Prophet

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    So, uncheck BD PROCHOT option in TS and play that game again and see if it fixes issues like strange stutters or throttling.
     
  7. Beempje

    Beempje Notebook Enthusiast

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    Thanks for the suggestion. Actually my default profile (and the one I had running when the crashes occurred) already had BD PROCHOT unchecked. Also, it wasn't stutters or throttling, it was a total system freeze out of nowhere, with the game running like a dream just the second before...
     
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  8. Falkentyne

    Falkentyne Notebook Prophet

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    You're undervolting right?
    If the CPU is only using 11-12W, it means that there is almost no CPU power load, and thus the CPU is downclocking. If you are using ADAPTIVE VCORE, it means that the adaptive voltage is also being set lower. If you are undervolting, then the undervolt applies to BOTH the idle voltage and the load voltage. It's possible that at (low load) idle one of the voltage steps is unstable because of the undervolt. The way to fix this is to reduce the undervolt by a little bit.

    This is one of the problems with dynamic voltages. You can see the same thing happen with Pascal video cards. Set a certain overclock when NOT locking the voltage (if the voltage is locked with control L on a point, the vcore will only be reduced when hitting power limits or the temperature throttle -13 mhz steps), the card might be stable for hours at full load and higher heat, but when first starting a game, it may crash in the first minute, as the temps are low and the voltage hits a certain voltage step which winds up being unstable at that core clock.

    The "on/off" button only controls the power saving options in the main window (Speedstep, C1E). Not the profiles or monitoring.
     
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  9. Beempje

    Beempje Notebook Enthusiast

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    Thanks for your reply! Yes, I am undervolting and your reply sounds plausible. I'll have to try it out later tonight. I'm pretty sure that I tested with a neutral normal volted profile too and saw the same results (crash), but I'll double check that too.

    I'll report back when I know more. Thanks for the replies so far! :)
     
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  10. Beempje

    Beempje Notebook Enthusiast

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    Okay so I tested some more. Changed the game profile so there's no undervolt happening, made sure BD PROCHOT is unchecked. Yet the same behaviour occurs: a couple seconds after the fan kicks into high speed, the whole machine crashes and reboots. See the screenshots below for the settings I used, and the last couple of lines from the log right before it crashed.

    [​IMG]
    [​IMG]
    Code:
       DATE       TIME    MULTI   C0%   CKMOD  CHIPM   BAT_mW  TEMP  GPU     VID   POWER
    2017-10-11  21:00:51  27.51   21.4  100.0  100.0        0   68    63   0.9310   11.4
    2017-10-11  21:00:52  28.47   21.5  100.0  100.0        0   63    63   0.9349   11.9
    2017-10-11  21:00:53  27.94   20.9  100.0  100.0        0   65    63   0.9296   11.3
    2017-10-11  21:00:54  27.70   21.8  100.0  100.0        0   64    63   0.9143   11.6
    2017-10-11  21:00:55  27.57   21.3  100.0  100.0        0   68    63   0.9158   11.1
    2017-10-11  21:00:56  27.74   21.7  100.0  100.0        0   68    63   0.9523   11.6
    2017-10-11  21:00:57  27.50   22.0  100.0  100.0        0   67    64   0.9578   11.5
    2017-10-11  21:00:58  28.01   21.8  100.0  100.0        0   65    64   0.8909   11.5
    2017-10-11  21:00:59  27.41   21.7  100.0  100.0        0   67    64   0.9009   11.3
    2017-10-11  21:01:00  27.54   21.6  100.0  100.0        0   67    63   0.8856   11.4
    Any ideas? :)
     
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