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Vaio PCG-R505EL - fan making noise

Ventilator is making noise when machine is in the docking station. Sounds like it touches something... what should i do?

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  • markcoble Dec 07, 2008

    I have a Sony VGN-BZ12VN that does the same with the docking statio that goes with it.

  • jusvalue Apr 04, 2009

    I too have the same issue (PCG-R505EL). I took the machine apart and removed the fan housing. I then opened the fan housing and cleaned it thoroughly. This however did not yield the desired outcome. I did find that the part that spins (the fan itself) is held snug to the housing and shaft with magnets. My guess is, these magnets have lost the strength to hold the fan firmly in place as it rotates. I think the noise comes from the motors shaft is spinning faster than fan. Thus, the noise is a result of the magnets weakening over time as magnets do. I see three options here: 1. Replace the magnets (good luck finding those). 2. Buy a used replacement for the fan (risky because you do not know the condition of the magnets). 3. Buy a new laptop (this hurts, as I love my notebook). Anyhow, this is what I believe to be the problem. If someone else knows more please feel free to jump on in.

    Note: You can use power panel to adjust fan settings for each profile. However, this compromises CPU performance by regulating CPU speed to prevent overheating.



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I too removed the fan from the housing and cleaned the fan shaft with a Qtip. Then I cleaned the magnets.
THEN I used a really light bike chain lube called Prolink to lightly lube the magnets and the fan shaft.

The thinness of the lube ensures that it won't gum up the fan shaft and if the shaft does make contact with the housing it won't make quite so much noise.

Three days now and the difference from "grinding chrun" to whirring fan is noticeable.

Posted on Jan 16, 2011


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