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    Control Fan Speeds NP9150

    Discussion in 'Sager and Clevo' started by K_Wall_24, Jun 13, 2012.

  1. K_Wall_24

    K_Wall_24 Notebook Evangelist

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    Can you control the fan speeds? Like, if they come on in the middle of the library, can I tone them down a bit? Obviously i have to be careful that the rig doesn't overheat. Something like Speedfan?
     
    K_Wall_24, Jun 13, 2012
    #1
  2. vuman619

    vuman619 Notebook Evangelist

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    According to some posts on the forums, they cannot be adjusted with any software at the moment.
     
    vuman619, Jun 13, 2012
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  3. jaug1337

    jaug1337 de_dust2

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    No, sadly it is not possible.. not impossible, but just not able to be adjusted at the current moment :)
     
    jaug1337, Jun 13, 2012
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  4. flyingnugget

    flyingnugget Notebook Enthusiast

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    I really wish I could set my own fan profiles :(
     
    flyingnugget, Jun 13, 2012
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  5. vuman619

    vuman619 Notebook Evangelist

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    me 2. 10chars
     
    vuman619, Jun 13, 2012
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  6. K_Wall_24

    K_Wall_24 Notebook Evangelist

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    Yeah, I'm just trying to think ahead, and i saw somebody say their fans went off in the middle of something when they weren't needed.
     
    K_Wall_24, Jun 13, 2012
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  7. TokamakH3

    TokamakH3 Notebook Guru

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    Yeah, and they're always at an audible level for no real reason. Idle CPU at 45C, I should be able to turn it down a notch and live with a 55C idle or so.
     
    TokamakH3, Jun 20, 2012
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  8. arg8

    arg8 Notebook Consultant

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    I have silent (yet powerful) external cooling (not a portable kind). The internal fans contribute absolutely nothing at idle to moderate load (whether they are on or off).

    The GPU is downclocked and idles at 38°C constant (well below the 42°C GPU fan kick-in threshold).

    The laptop CPU idles at 38°C, may ramp up to 45°C during slight load spike... still the CPU fan will not spin down unless I hit a sustained 37°C. (which rarily happens with amient temperatures above 21°C and never lasts too long until a CPU load spike trips the wire again as soon as there is a hairline spike that happens to cross 39°C.)

    The problem is the EC bios thermal management, and based on the number of bios updates related to thermal management released by Clevo in the past, I think it's fair to say they have no clue what they are doing in this respect. So they just air on the safe side: Keep the jet engines warmed-up as must as possible.
     
    arg8, Jun 20, 2012
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  9. arg8

    arg8 Notebook Consultant

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    One thing that can help however, is to set the CPU in "power saver" mode (or more realisticaly in "Balanced" mode) and set the max CPU frequency to ~30%-50%... to the level of performance hit you can stomach. The CPU will run cooler. If room temperature is low enough, the fans might cycle on and off periodically.

    Although it may not be possible for the system passively cool in mobile situations, assuming an EC bios tweak was possible, and given a few heatsink mods, it should be possible to reach a very low fan cycling duty-cycle with much longer period. And under this condition the fan should only ramp-up to its lowest possible fan speed, cool the system back down (which happens in seconds with heatpipes) and then cut-off.
     
    arg8, Jun 20, 2012
    #9
  10. cwl999

    cwl999 Notebook Enthusiast

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    Has anyone tried to poke values into the EC using "rw everything".

    I've found values that appear to be the CPU temps, fan speed, backlight and device control (wifi, etc).
     
    cwl999, Jun 21, 2012
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  11. truekiller28

    truekiller28 Notebook Consultant

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    Obviously there's only a fan boost feature not a downspeed feature in NP9150 Fn+F1, right ?
     
    truekiller28, Jun 21, 2012
    #11
  12. flyingnugget

    flyingnugget Notebook Enthusiast

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    that does nothing
     
    flyingnugget, Jun 21, 2012
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  13. crosslimit

    crosslimit Notebook Evangelist

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    crosslimit, Sep 26, 2012
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  14. Vozier

    Vozier Notebook Evangelist

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    I have found that when my CPU fan goes to fast for no reason using FN + 1 once wait a few secs (the gPU fan will start and make a lot of noise, BUT the CPU fan is also sped) and then doing it again (this turns both fans to the minimum) shuts the CPU fan to a slower state than before.

    I hope that little trick helps someone, for me it works, although sometimes the only help is to restart the laptop completely (wich with my SSD is really no hassle).

    Anyway IF you are trying to game with the laptop that trick wont help you since the fans will go on again. But then again why would you play in the library???? hehehehe

    cheers :D

    Voz
     
    Vozier, Sep 26, 2012
    #14
  15. jkel777

    jkel777 Notebook Guru

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    I've noticed that about every few minutes or so, my CPU fan will slowly increase in speed exponentially over a few seconds, then decrease back to an idle state. Is this normal?
     
    jkel777, Sep 26, 2012
    #15
  16. moral hazard

    moral hazard Notebook Nobel Laureate

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    Can I ask which register is responsible for the fan speed?
     
    moral hazard, Sep 26, 2012
    #16