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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    Disabling the C states means your CPU will run hotter and slower when lightly loaded. Only about 5% slower (4100 MHz vs 3900 MHz) so not too bad. When I disable the C states, the extra fan noise is noticed immediately. I prefer a silent computer so I leave the C states enabled.

    I started life with an 8 MHz processor and a floppy drive for storage. A mechanical hard drive was an option I could not justify. The Task Manager starts up plenty fast enough for me.

    Speed Shift is not enabled or being used so no need to check or set Speed Shift EPP to 0. If your CPU is always at 3900 MHz after booting up or when resuming from sleep or hibernate then you do not have to enable SpeedStep either. Some laptops might randomly get stuck at 800 MHz when Speed Shift and SpeedStep are both disabled.

    Your screenshot shows PROCHOT 100°C in red. That means the CPU has been thermal throttling.
     
  2. FastPete

    FastPete Newbie

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    Hi all, I was wondering if someone could have a look at my throttlestop settings. Just to make sure I haven't done anything that might cause harm :)

    I was having bad temperature problems after a warranty repair (motherboard replacement) so I decided to re-paste the CPU and GPU before sending the laptop back again.

    I'm very happy with the results now (before the re-paste, I was getting spikes to 100 degrees!) but wanted to make sure there is nothing in my settings that might do damage. I've never tried undervolting before.

    The laptop is a PCSpecialist Recoil (TongFang GK7CP7S) with a i7 9750h and RTX 2070

    Thanks in advance....

    [​IMG]

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    [​IMG]
     
  3. pressing

    pressing Notebook Deity

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    Edit - you might be able to boost CPU core undervolt on newer CPUs (might not be necessary to match core undervolt).

    Also, is your SpeedShift activated? It should be as you checked SpeedShift and have an EPP or 0 on the first page of ThrottleStop. Normally I see green "SST" lit up on the first page (to the right of the EPP level "0"). And the EPP level of "0" would be written in the FIVR screen in top left corner.

    The max temps on cores 0 & 2 are a lot higher than others at max. Maybe that is warped heatsink, inconsistent torque among screws, or a repaste could help; a lot of us try repasting a few times until core temps get below say 4*c delta.
     
    Last edited: Sep 19, 2020
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  4. unclewebb

    unclewebb ThrottleStop Author

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    Things are looking great. The ThrottleStop Max data shows 84°C while dissipating 87W. Most laptops from the major manufacturers will start to overheat and thermal throttle when running at or just beyond the 45W TDP rating. Not sure why people settle for under performing garbage like that. Laptops built on the TongFang chassis have much better thermal performance.

    I would not bother redoing the thermal paste. Equal core temperatures when the cores are equally loaded looks nice but as long as your CPU is not thermal throttling on any core, perfect temperatures are not necessary. The temperature sensors that Intel uses are not perfectly accurate monitoring devices so some temperature differences from core to core is not unusual. Some of the difference might be sensor error and not a difference in actual temperatures.

    @pressing suggested that you can undervolt the core more than the cache. Run Cinebench R20 for a baseline with both offset voltages set to -120 mV. Leave the cache at -120 mV and start dropping only the core. -140 mV, -160 mV, -180 mV, -200 mV, -220 mV. Many users will continue to see improvements in either their temperatures or in their Cinebench scores when they do this.

    If your CPU is not thermal or power limit throttling during Cinebench at -120 mV for both, you might not see any performance improvement. Your temps might drop a couple of degrees. If you are not thermal throttling during Cinebench, running a little cooler might not be important to you either. Most users with under designed laptops have to fight to maximize performance and minimize temperatures. A proper heatsink and fan makes your life so much easier.

    You can activate Speed Shift in the TPL window. Once activated, then you will have the option to adjust the Speed Shift EPP value on the main screen to control your CPU's speed. Use an EPP setting of 0 for maximum CPU speed / performance. When running on battery power, you can adjust EPP between 80 and 128 to slow your CPU down when lightly loaded. When plugged in, I like maximum speed.
     
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  5. FastPete

    FastPete Newbie

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    Thanks so much for the detailed reply! I'm very happy with the temps at the moment. Zero throttling and the laptop is noticeably cooler when in normal use.

    I've found that it will peak at the low 90s when playing the new MS Flight Sim but it still hangs around the mid 80's for the vast majority of the time. I still get no throttling.

    No problems in Metro Exodus at all. Runs quiet on max settings all the time.

    I got to -150mv on the core voltage. Any more caused instability. I'll leave it there for now and raise it if I run into any problems.

    Can I ask you if the profiles in throttlestop switch automatically? If I disconnect the power will it switch to the battery profile?

    Should I keep the same undervolt settings in the battery profile?

    Does the Game/Office switch on the laptop change profiles/settings in throttlestop?

    Thanks again and sorry about all the questions!
     
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  6. unclewebb

    unclewebb ThrottleStop Author

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    Your profiles will switch automatically if that is what you tell ThrottleStop to do. Open the Options window and in the top right corner you can set an AC profile and a battery profile. After you get this set up, plug and unplug your laptop a few times and make sure this works correctly. It should.

    If an undervolt is stable, it should be stable at any speed. I would run the same offset voltage values whether plugged in or on battery power.

    ThrottleStop has no ability to control the Game/Office switch on your laptop. Whatever that switch does will not make any direct changes to your ThrottleStop settings. I prefer a simple life. The less profile switching that is going on the better.
     
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  7. FastPete

    FastPete Newbie

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    Perfect. Thanks for clearing that up. It's really taken the laptop to a new level.
     
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  8. Vasudev

    Vasudev Notebook Nobel Laureate

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    As usual since its Dell PC you have to be half a step ahead!
    I think Plundervolt ucode really broke the perf. of CPU by 65%. I tried D6 uCode and then reverted to CC uCode.
     
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  9. RaymanDK

    RaymanDK Newbie

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    Does anyone else experience the boost stops mid game and then comes back after like 30 seconds again?

    It'll run at 90C at 3.5 boost but then just randomly drop to 2.2 for around half a minute and then boost again until it drops again? All the boost time limits are maxed.
     
  10. redmop

    redmop Notebook Consultant

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    Any reason TS isn't showing anything under limits, ever?
     
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