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    A program to control the fan speeds properly?

    Discussion in 'Windows OS and Software' started by Mr.K-1994, Oct 13, 2018.

  1. Mr.K-1994

    Mr.K-1994 Notebook Consultant

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    Per title,I wanted to ask whether a good program exists to control fan speeds and set profiles(eg:On battery,at most 25% fan speed;On AC,go haywire to keep the temps under control).

    The program that came with my laptop(Predator Sense) is so handicapped and flashy.

    So that's it.My model is the Acer Predator Helios 300 G3-572.
     
    Mr.K-1994, Oct 13, 2018
    #1
  2. StormJumper

    StormJumper Notebook Virtuoso

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    I would first look at your pins if they are 3 pin or 4 pin fan connectors and then go to your UEFI bios to see what settings it gives you. And some custom fans come with cfm ratings and speed controls as well so there is more then it looks here. So check with your board setup manuals to see what options you have first. Also I did a simple search with that model and see there is some info out there already.
     
    StormJumper, Oct 15, 2018
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  3. Che0063

    Che0063 Notebook Evangelist

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    Notebook Fan Control.

    You will need RW-Everything to configure it. NBFC reads and writes to your EC (Embedded Controller). On many systems these registers can be written to and thus the fanspeed of your laptop can be changed.

    upload_2018-10-16_13-33-6.png

    On my previous Acer laptops the registers that changed fan speeds were 148, 149 (Right) and 150, 151 Left IIRC. In this setup, one of the registers is a read register (it reads the fan speed) and the other is the write register (When you write to it, it will set the fan speed?)

    On some systems, the Read and Write register is the same register. There are a total of 256 registers in the EC. You have to find the correct one. Try writing a value to any register address of 148, 149, 150, or 151 as that seems to be the registers that Acer used on previous models. Maybe they changed it. There are plenty of guides out there on how to do this; there is no need for me to go on a spiel.

    Some laptops are difficult to control the fan speeds. The Mi Notebook Pro community has spend almost a year trying to figure out how to control the right fan, unsuccessfuly. The only way we have done that is to modify the BIOS (flash the EC region) to shift the fan/temperature tables by 12C. We still do not have 100% full control of the fans.
     
    Che0063, Oct 15, 2018
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