9900K Idle Temps

Discussion in 'Intel Processors' started by fullvietFX, Apr 13, 2019.

  1. fullvietFX

    fullvietFX [H]ard|Gawd

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    Hey there guys so usually my 9900K idles around 29C to 32C. However recently I installed Ai Suite 3 and the software shuts off my fans at idle which I really like. My only issue is that my CPU now idles around 46C now. Long-term wise do you think there will be any degradation on the processor? Probably not a big issue at all but I was just wondering.
     
    Last edited: Apr 13, 2019
  2. eclypse

    eclypse 2[H]4U

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    Sounds like you need to set up the fans in suite 3 with fan profiles.

    That's a hot CPU and letting it get that hot before something like gaming kicks in would only make sure shes running too hot more then it needs to be.

    Have your fans set to low rpms but still moving air when idling. Usually just noticable would be good.
     
  3. eclypse

    eclypse 2[H]4U

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    You want quiet you need to invest a ton of money into a custom water loop and large rads so you can have many quiet fans cooling that CPU and graphics card.
     
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  4. fullvietFX

    fullvietFX [H]ard|Gawd

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    I just upped the RPM's by 350 and I can't even hear it and the temperatures dropped 15C. Thanks for the input fellas!
     
  5. Spartacus09

    Spartacus09 Gawd

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    The higher end AIOs do a decent job for low cost, maint, and noise. The 280mm or 360mm is definitely recommended minimum though for any OC on the 9900k.

    That being said theres nothing that will affect the chip with running 0 fam at low temps, however it may decrease the life of the fans if they have to turn on/off several hundred times a day.
     
    Last edited: Apr 13, 2019
  6. Andross182

    Andross182 Gawd

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    my 9900k at stock clocks idles around 39-41c under an h115i platinum cooler.
     
  7. Armenius

    Armenius I Drive Myself to the [H]ospital

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    That's bad, especially if you're using that Air 540 case in your sig. What is the ambient temp of the room? How hot does it get with a gaming load? Mine idles at 30C with the Kraken X72 (360mm) with a 24C ambient for a 6C delta. It idled at 32C with the X62 (280mm). This is with MCE enabled.
     
  8. Keljian

    Keljian Limp Gawd

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    Keep the fans on, but keep them slow at stock.

    If enabled in the bios Thermal Voltage Boost will allow the chip to momentarily (until temperatures rise above 50C) clock up 200Mhz above the maximum turbo speed. But for this to happen the temperature of the chip needs to be below 50C. The lower the initial temperature, the more time it can sit at the higher speed.

    It is for brief transient loads.
     
  9. Falkentyne

    Falkentyne [H]ard|Gawd

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    That isn't thermal velocity boost.
    What you described is for laptops. TVB functions differently on laptops than desktops.
    TVB on desktops just lower the VID based on temperature.

    https://rog.asus.com/forum/showthread.php?106375-MCE-explanations-and-others&highlight=explanations
     
  10. Falkentyne

    Falkentyne [H]ard|Gawd

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    No, it's just Intel being Intel.
    TVB on desktops isn't documented (it's controlled by a MSR) because it's literally unimportant. All it does is *decrease* CPU VID by 1.5mv every 1C drop starting at 100C (Intel chips are designed to operate up to 100C when running at their official turbo boost frequencies, and with auto voltages and stock AC/DC loadlines. Your question was naturally asked by someone else before and I forgot who replied, saying that the datasheet only talks about the laptop ratio clipping.
    Notice that the intel PDF says "only avalable on 8th generation intel i9 (8th, not 9th) and mobile xeons?
    It's directly referring to laptops here.

    TVB on laptops actually increases turbo bins if the chip is under 50C (again, total garbage...how is a laptop going to stay under 50C at load?).
    Those pages and the datasheet you mentioned only deals with TVB on *laptops*. Not desktops.

    The laptop TVB is not controlled by a MSR. It's controlled by the bios
    "TVB Ratio Clipping enabled/disabled" (you can see this in a raw AMI bios dump with AMIBCP 5.02.0031.

    (not sure what TVB Voltage Optimizations does, but it's in the same location in a bios; it may or may not be the same as the desktop "MSR" version.
    Read Shamino's post and see how it works on desktops.

    (I had no luck with this MSR, it was all 0's and any attempt to change it made it stay all 0's).

     
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  11. somebrains

    somebrains Limp Gawd

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    My fan and pump curves ramp up when I'm gaming.
    I can't hear them bc I'm wearing a set of cans and concentrating on breaking my kill record.
    Fwiw airflow is becoming an issue as Spring hits the mid-80's.

    280mm Aio on 7820x front case intake with 120mm aio on 1080ti exhaust will need some help this summer.