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    Notebook Hardware Control - m51sn fan

    Discussion in 'Asus' started by simone_s, Apr 9, 2008.

  1. simone_s

    simone_s Newbie

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    Hi there,
    I would like to change the fan settings on my 51sn.
    Now is always on, I would like the fan to run when only when the notebook needs it (for example when it reach 55 degrees?)
    Looking for help,
    thanks
    Simone
     
  2. ClearSkies

    ClearSkies Well no, I'm still here..

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    NHC is only able to control the fan if there is an available profile for it, and these are pretty model specific. Since the M-5x series is brand new, there may not be one out unless someone develops one, and support in the past for Asus motherboards has been spotty. In addition, using a modified ACPI profile can really screw up the thermal management, as I discovered with mine.

    One other caution - the fan is set to run at low rpm currently to keep the temps of your notebook under control.... if you set it to stay off and then come on at 55 your cpu temp will simply ramp up pretty quickly since there will be no airflow inside the chassis to keep it cool, so you'll gain only a few minutes of quiet in the meantime. And unless you maintain the higher rpm settings for the higher temp (which should be higher and, unfortunately, louder) the internal temp will continue to proceed higher because the low rpm can't handle the heat and you're going to create a situation where there is more inside the box than Asus' engineers intended. Thermal policies are there for a reason, and are admittedly conservative (esp for Asus, who have been known to alter these even further down during BIOS updates).

    Most people trying to use fan control actually want to activate it at low rpm at lower temps, to keep the louder high rpm settings from coming into play as often, not the other way around that you're suggesting. Proceed at your own risk :).