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    Getting fan to turn on earlier?

    Discussion in 'Asus' started by D.A., Jan 10, 2008.

  1. D.A.

    D.A. Notebook Consultant

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    My notebook: Asus A6JC

    I've noticed that it rarely ever use the fan in the notebook, it doesn't activate until the CPU temperature is about 63C, and even then it never goes to full power.

    Is there any way to hack/force the fan to run on full power earlier or all the time? I've tried some ACPI stuff with NHC, but nothing is actually happening with the fan.

    So far I've found nothing that could fool the computer to think the temperature is higher than it actually is.

    I've attached the dsdt.dsl for my laptop, if any of you could figure out where it controls if the fan should be activated or not.
     

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    D.A., Jan 10, 2008
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  2. E.B.E.

    E.B.E. NBR Procrastinator

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    63 degrees seems a bit too much for the fan to turn on (it should turn on earlier).

    1. Remove NHC or any other power management applications. (RMClock, ASUS Power4Gear, Everest, Speedfan)
    2. Make sure ACPI drivers are properly installed.
    3. Update BIOS.

    Then check if the fan is running normally (i.e. earlier).
     
    E.B.E., Jan 10, 2008
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  3. D.A.

    D.A. Notebook Consultant

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    Done that, nothing of it helps. It seems like the fans wont be turned on before they reach 62C-63C by the ACPI. Wonder why ASUS decided it should be that high.

    However I managed to get the fan to run with Speedfan (haven't worked before though). I've set the fan to run at 50 % (will try lower later) and the CPU temperature is now 38C, and at this speed the fan is louder than I have ever heard it before (except at boot). At 100 % it is quite loud.

    Problem solved.
     
    D.A., Jan 10, 2008
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  4. AlexF

    AlexF Notebook Deity

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    For future reference, Power4Gear actually controls it through ACPI. Depending on the profile, it changes the thresholds the fan steps up the speed.

    ex: on my V1J, Quiet Office profile doesn't kick the fan on to high-speed until like 80C whereas Super Performance kicks it on at 60C.
     
    AlexF, Jan 10, 2008
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  5. E.B.E.

    E.B.E. NBR Procrastinator

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    That;s why I said P4Gear should be removed before making a determination.

    Speedfan is a solution, though -- if it works.
     
    E.B.E., Jan 10, 2008
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