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    timeline 4810T fan always on

    Discussion in 'Acer' started by cmpscabral, Sep 16, 2009.

  1. cmpscabral

    cmpscabral Notebook Enthusiast

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    Hi,

    My 4810T has the fan always on (not too loud, but on nevertheless...). I can't tell if it's because of the CPU (intel SU9400) or the GPU (intel gma 4500mhd).

    Is there any option where I can control this? I'm on Ubuntu and I'm using the "CPU frequency scaling monitor" applet to throttle the CPU, but even in it's lowest frequency, the fan never shuts down.

    Thanks
     
    cmpscabral, Sep 16, 2009
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  2. cmpscabral

    cmpscabral Notebook Enthusiast

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    anyone...?
     
    cmpscabral, Sep 18, 2009
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  3. danieljdsn

    danieljdsn Notebook Consultant

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    it should be *on* all the time..it is normal
     
    danieljdsn, Sep 19, 2009
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  4. moral hazard

    moral hazard Notebook Nobel Laureate

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    you should try the undervolting guide.

    Otherwise you may be able to modify the dsdt table in the registry to control the fan.
    I can give you a good guide if you want it.
     
    moral hazard, Sep 19, 2009
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  5. cmpscabral

    cmpscabral Notebook Enthusiast

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    Yes, please send :)

    About undervolting - I'll be changing the processor voltage, but that doesn't mean the fan speed will be lower if it's not programmed to do it, right?
     
    cmpscabral, Sep 19, 2009
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  6. Jayayess1190

    Jayayess1190 Waiting on Intel Cannonlake

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    I undervolt my 3810, it does nothing for the fan noise.
     
    Jayayess1190, Sep 19, 2009
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  7. cmpscabral

    cmpscabral Notebook Enthusiast

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    have you tried editing the DSDT table, as suggested by moral hazard?
     
    cmpscabral, Sep 19, 2009
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  8. Phil

    Phil Retired

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    Maybe one of the tweaks inside the timeline tweaks thread in my signature can help. There's some stuff for the fans.

    Undervolting is always a good idea.
     
    Phil, Sep 19, 2009
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  9. Jayayess1190

    Jayayess1190 Waiting on Intel Cannonlake

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    I haven't tried it, but from reading about it it seems it could damage the computer. I'll just leave everything the way it is.
     
    Jayayess1190, Sep 19, 2009
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  10. moral hazard

    moral hazard Notebook Nobel Laureate

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    Here is a link for the dsdt mod:
    http://forum.notebookreview.com/showpost.php?p=5303629&postcount=163

    If you need help with it, let me know :)

    It can damage the computer, yes :(
    So please be carefull everyone :)
     
    moral hazard, Sep 19, 2009
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  11. dnaxx

    dnaxx Notebook Guru

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    But as only the windows registry/linux kernel is modified, the only risk is that the kernel/registry has to be replaced with a backup? Besides the CPU could overheat, but only if you get the fan-control working.

    Has anyone found the correct entries in the ASL file? I tried to search for "0x64" (100% Fan) but without success.
     
    dnaxx, Oct 5, 2009
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  12. moral hazard

    moral hazard Notebook Nobel Laureate

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    if you rename the file to *.txt and upload it here, I will try to find the code for you.

    Also look for "TZ" in the file.
    Where the "TZ" scope defines the thermal zone.
     
    moral hazard, Oct 5, 2009
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  13. Mistrel

    Mistrel Newbie

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    I would also like to turn my fan down/off when the cpu is running at higher temperatures.

    I followed the link mentioned previously but found no guide for modifying my "DSDT table".
     
    Mistrel, Jul 20, 2010
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  14. moral hazard

    moral hazard Notebook Nobel Laureate

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    moral hazard, Jul 20, 2010
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  15. Mistrel

    Mistrel Newbie

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    I think I can follow that tutorial. Thanks a lot. :)
     
    Mistrel, Jul 20, 2010
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  16. ruivoml

    ruivoml Newbie

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    Sorry for reviving an old thread, but currently i am experiencing the same problem. My 4810T fan keeps getting stuck at what appears to be 100%, even when the computer is cool and idle. The noise is maddening, it can be heard from the living room.

    I've tried disassembling the notebook to try and clean the fan, but with no success, i have no idea on how to remove the fan and last time i tried, a loose touchpad flex cable made me think i had killed my touchpad.


    I successfully got to the part where i'm looking at the dsdt.ASL file with notepad, but i can't find anything similar to what's on the HP tutorial.

    Can someone help?
     
    ruivoml, Dec 29, 2010
    #16