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    Peculiar fan noise on SZ340

    Discussion in 'VAIO / Sony' started by phoenixburnin, Feb 29, 2008.

  1. phoenixburnin

    phoenixburnin Newbie

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    I'm not sure really sure what the problem is, but the fan on my SZ340 recently started making a loud buzzing or whizzing noise when it's turning off. The fan does not make any abnormal noises while it's spinning, and only for about 2-3 secs while winding down. I've tried running high pressure air through the fan vents and got a good amount of dust out, but it is still making the noise. Does anyone know why my fan would be making this noise?

    It's been annoying me the last couple weeks, but was especially motivated to find the source of the problem after spending the day in a quiet library with my not so quiet computer. I wasn't running any intense programs, so my fan would stop and start every couple minutes or so and every time the fan turned off, heads turned.

    Any thoughts?
     
    phoenixburnin, Feb 29, 2008
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  2. Benjamin Chin

    Benjamin Chin Notebook Consultant

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    Fan is loose, I suspect.

    When the fan spins fast it creates enough wind pressure that pushes it against one side and so it remains quiet. When it slows down and the wind pressure subsides, it begins to vibrate and create those noise.


    rgds.
     
    Benjamin Chin, Feb 29, 2008
    #2