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    W860CU - no GPU fan speed readout

    Discussion in 'Sager and Clevo' started by DivingDuck, Jan 9, 2011.

  1. DivingDuck

    DivingDuck Notebook Enthusiast

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    Moin,

    while trying to reduce the fan noise of my W860CU I noticed that there is absolutely no readout available for my
    • GPU fan speed
    • GPU load
    • CPU fan speed

    I´ve used several tools, including AIDA64, SpeedFan, GPU-Z and HWMonitor. No joy.

    I´ve already managed to reduce the GPU idle temp to about 42°c (ambient is 21°C, on a CoolerMaster cooling stand) while downclocked to 200/300. But fan speed does not reduce the slightest. I´ve reworked the fan throttle control settings (0% until hitting 80°C) using RBE1.26 and flashed the VBIOS. No change either.

    I´ve worked my way all through the threads regarding the noise of W860CU/NP8690. But my major question remains: Any idea why there´s no fan speed readout available?


    Regards,
    DD
     
    DivingDuck, Jan 9, 2011
    #1
  2. theriko

    theriko Ronin

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    The fan speeds for these notebooks are controlled by the KBC/EC firmware and are not readable/editable afaik.
     
    theriko, Jan 9, 2011
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  3. DivingDuck

    DivingDuck Notebook Enthusiast

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    Moin,

    not what I was hoping for. But thanks anyway.

    I´ve checked the KBC/EC firmware file in my hex editor. Unfortunately there is not a single ASCII string present to give a clue. Without detailed information about the file structure and conventions to meet, there is no way to hex edit it. :(

    While I was at it I´ve had a quick look into the system BIOS file (v1.00.18) too. I was surprised to find great blank areas filled with xFF or x00. I guess these areas are placeholders that have originally been used/designed to access presently unavailable features such as fan control.


    Regards,
    DD
     
    DivingDuck, Jan 11, 2011
    #3