RB17 Pro 2019 fan mod?

Discussion in 'Razer' started by amihail91, Feb 13, 2020.

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  1. amihail91

    amihail91 Notebook Evangelist

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    These things whine like crazy when they spin up, even at low speed and it's driving me crazy! Has anybody successfully changed out the fans in any Razer Blade?
     
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  2. struselix

    struselix Notebook Consultant

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    What about the fan sound? Well at my unit it is not really rattling.
    But do you only hear the airflow from the fans or do you also hear the the fan motors / fan blades rotating?
    Here I tried to record the hum in the background of the airflow.
    https://we.tl/t-ikLyGJ96YD
     
  3. amihail91

    amihail91 Notebook Evangelist

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    Thats the same noise I'm hearing - I don't remember the RB15 "whining" quite like that when the fans spin up.
     
  4. struselix

    struselix Notebook Consultant

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    So if your unit sounds like mine...maybe that is the normal sound for the fans of a RB?
     
  5. amihail91

    amihail91 Notebook Evangelist

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    Yikes - that whirring is so annoying. :|
     
  6. struselix

    struselix Notebook Consultant

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    So what do you plan to do?
    I would replace the fan (it`s only the right one for me) but you would have to remove the headsink for it. And I do not want to do that. And where to get a new fan from?
     
  7. amihail91

    amihail91 Notebook Evangelist

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    Are there any aftermarket laptop fans that are built to run quieter?
     
  8. rinneh

    rinneh Notebook Prophet

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    they use PWM fans which tend to "whisttle" at lower speeds, on the RB15 as well. But now you got 4 of them instead of 2 and the bottom battery pack ones are smaller and have a different frequency.
     
  9. struselix

    struselix Notebook Consultant

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    I understood that he is annoyed by the "whirring" of the fan blades and nor by the air flow sound frequency.
     
  10. rinneh

    rinneh Notebook Prophet

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    That is why i said PWM fans. PWM causes a "Whistling sound at certain rotation speed frequencies. Because the fans on the bottom (2 battery fans) are different than the op fans they operate at different speeds (faster because they are smaller) and causes a whole different frequency of "whistling". So you basically have 2 sets of 2 fans all creating a high pitched sound but at a different frequency. It becomes almost like a chord in music instead of one single tone. The high pitched sound comes from the motor, not the fan blades.

    More about PWM


    Basically based on the fanspeed you create an audio curve because frequency modulation.
     
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