Limit Laptop CPU

Discussion in 'PC Hardware' started by Dark Dinosaur, Sep 26, 2022.

  1. Dark Dinosaur

    Dark Dinosaur X Æ A-12

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    #1 Dark Dinosaur, Sep 26, 2022
    Last edited: Sep 28, 2022
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  2. Dolmatov

    Dolmatov MDL Addicted

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    Disable overclocking?
     
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  3. Dark Dinosaur

    Dark Dinosaur X Æ A-12

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    I want the over clocking, but I don't want that it will always work in high MHZ
     
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  4. kaljukass

    kaljukass MDL Guru

    Nov 26, 2012
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    The correct answer is that yes, it is possible, but there is no need for it.
    How to do it? There are more than 1 possibilities, but it all depends on what system you have and what processor you are using.
    It's only a problem if your CPU always runs at around 130-135 degrees Celsius or more, but sometimes 90+ is absolutely normal for any modern and normal CPU. It would also be a problem if your CPU was always running at around 60 degrees. Then you should start looking for the reason why it is so.
    It is wise to enable OverClocking only if you really need it.
    And I wouldn't want to think that the factory where your computer is bored out and manufactured is filled with only stupid and very stupid engineers who don't know how is the best way to use processors.
     
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  5. Dolmatov

    Dolmatov MDL Addicted

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  6. Dark Dinosaur

    Dark Dinosaur X Æ A-12

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    I have reason to believe that is normal in this laptop to run at 50-60 deg.
    and since I live in Israel, that a Desert climate, it's pretty normal
    in the winter, the temperature was about 40+ deg. even lower.
    I could do movie rendering without problem :D
     
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  7. MS_User

    MS_User MDL Guru

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  8. Dark Dinosaur

    Dark Dinosaur X Æ A-12

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  9. TigTex

    TigTex MDL Senior Member

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    There's a tool called throtlestop that you can use to limit your CPU turbo ratios and/or undervolt it.
    Up to 100ºC is the new "normal" and you don't need to worry about it.
    The CPUs are designed to turbo as much as they can until they run out of thermal headroom or they get power limited. For example, the new AMD Ryzen 7000 series run at 95ºC by default on high end watercooled desktops and can run up to 115ºC without thermal throttling.

    There's only a problem if you see the CPU exceeding 100ºC while heavily reducing the clock to below base clocks (for example, reduce to 800mhz). You can use hwinfo64 to see if you are reaching the thermal throttle limit.
    Long are gone the days that 70ºC was considered high temperatures.
     
  10. Dark Dinosaur

    Dark Dinosaur X Æ A-12

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    the problem with heat is .. electronic & heat don't work together
    so for the long run, you motherboard / CPU will gone too early
     
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  11. AveYo

    AveYo MDL Expert

    Feb 10, 2009
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    My passive-cooled PC does not even go above 50ºC (20ºC above ambient) in normal usage (browsing, management, media, lots of file and text processing) ;)
    I do have a hard switch to start cpu & gpu fans if doing some lite gaming.
    Running computers at above 85ºC idle is.. not just suboptimal, it's hazardous - maybe it's time to invest in a proper beefy heat-spreader + locking mechanism + great thermal paste / go water-cooling / add better fans / at least clean the dust.
     
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  12. acer-5100

    acer-5100 MDL Guru

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    That means very little.

    Electronics needs to work inside the parameters. And parameters varies across generations, make, technology and so on.

    Say the Apple M2 reach almost 100 ºC during normal work. It's a projecting choice, to keep the noise low.

    My PC likely will not even boot at 100 degrees (although the maximum junction temperature is 105 ºC~)

    Not different from cars or other tech. 6000 RPM may be the norm for a Ferrari, but will take a FIAT Panda apart.
     
  13. Dark Dinosaur

    Dark Dinosaur X Æ A-12

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    in my previews laptop
    on 100C the air fan scream until reach 50C-60C
    if by mistake, it will get 117C, it begin shutdown
    MSI build them in purpose to work until 100C in overload
    maybe their attention is you replace laptop each 3 years ?!?!
     
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  14. acer-5100

    acer-5100 MDL Guru

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    #14 acer-5100, Oct 4, 2022
    Last edited: Oct 4, 2022

    In 40+ years I have seen just a couple of dead CPUs, they are likely the most robust pieces of tech ever.

    Most problems related with heat were related to the leadless soldering alloy that become mandatory in the early 2000s, and that was an immature tech.

    Nvidia card xbox users were the most known vctims of such switch. Now the soldering tecnique had time to improve, and should be as robust as the one from '80/90s.

    But here the heat was an indirect cuplrit. The faliure was due the heat/cold cycles not high temperature itself.
     
  15. TigTex

    TigTex MDL Senior Member

    Oct 5, 2009
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    The only dead cpu's that I've seen were because the VRM section failed and sent 12v (or 19v in laptops) directly to the CPU, instantly killing it.
    100ºC doesn't damage the CPU, but it reduces the lifespawn of the components near him, especially if it's a laptop because the motherboard has much less PCB layers and the heat spreads easily to nearby components (usually the powerstages and filtering capacitors).

    Having said that, if you are below thermal throttling territory and the noise levels are decent, you are OK.