MBA 13" 2010 vs MBA 13" 2011 SSD Write Noise ?

Discussion in 'MacBook Air' started by macbedhead, Feb 2, 2012.

  1. macbedhead macrumors member

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    Jun 28, 2010
    #1
    I just noticed I can hear the SSD write noise after upgrading to the new 2011 model.
    That can't be right ? ! No moving parts etc ! Yet when I put my ear near the keyboard I hear a high pitch fast writing noise like you'd get an a normal HD.
    I never had that noise that I was aware of on the last model.

    Hope it is not some soon to be dead compressor on the logic board.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #2
    SSDs don't make noise. You're probably hearing your fan.
     
  3. macbedhead thread starter macrumors member

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    Jun 28, 2010
    #3
    Sounds very "digital" and on/off/on/off "tat tat tat tat" like my old HDs but much quieter...sure its not the fan as I can distinguish the difference.
    And yet I know SSDs have no moving parts.

    My god my hearing must be great,I'm hearing quantum probabilities happening on my replacement mac.

    (Apple I love you for giving me the new model at no extra charge after my old one could not be fixed)....just hope this one has no issues.
     
  4. gentlefury macrumors 68030

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    Los Angeles, CA
    #4
    Thats impossible...it is a series of chips on a board...that would be like saying you can hear your ram.
     
  5. warfed macrumors regular

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    Apr 16, 2011
    #5
    Well there is such a thing as CPU whine... so you never know.
     
  6. macbedhead thread starter macrumors member

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    Jun 28, 2010
    #6
    Yes, I think it will be i5 whine vs the old core2duo....long as it is not some compressor about to pop.
     
  7. polee macrumors 6502a

    polee

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    Jul 22, 2008
    #7
    The core 2 duo does not whine right? I have not heard it on my late 2010 macbook air.

    Is there a whine present on the 2011 macbook air model?
     
  8. Astrofox macrumors member

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    Jul 24, 2011
    #8
    Sometimes components can interfere with speakers, so you might be hearing certain frequencies through that. I havent heard anything from my 2011 in a completely quiet room though (apart from the fan if it kicks in) so you either have canine hearing or, if others can hear it, perhaps a small main-board issue.
     
  9. gentlefury macrumors 68030

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    #9
    What would cause that? Expanding metals? Its a series of switches and transistors....nothing is moving....it shouldn't make any sound except the fan spinning.
     
  10. atMac macrumors 6502

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    Jun 20, 2011
    #10
    its not uncommon for any electronic device to make noise. Generally its caused by the voltage in the part not being correct. Some computer makers add sound deadening inside their machines to prevent users from being able to hear it.


    Some people can hear it, others can't it really depends on how good your hearing is in the upper range. I work in an IT office and it drives me crazy all day that I can hear it and others can't.
     
  11. calvol macrumors 6502a

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    Feb 3, 2011
  12. imswimmin macrumors regular

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    Apr 6, 2011
    #12
    The CPU whine in my HP (in my signature) is quite easily noticed, so I do know what it sounds like.

    I can happily report that I don't hear it when using my Mac.
     
  13. minnus macrumors 6502

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    Aug 12, 2011
    #13
    Ditto - sold my M11x cause I could not stand the whine from 1st Gen Sandybridge. My newest Platinum Plus PSU also came with ridiculously audible whine (there is a switch to turn the fans on and off, so it must certainly was not the fan).
     
  14. macbedhead, Feb 4, 2012
    Last edited: Feb 4, 2012

    macbedhead thread starter macrumors member

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    #14
    It happens when I get a high write speed, otherwise no sounds when just surfing so I guess it is related to CPU throughput then.
     
  15. warfed macrumors regular

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    Apr 16, 2011
    #15
    Electricity would cause that.
     
  16. gentlefury macrumors 68030

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    #16
    I guess if your outlet isn't properly grounded...if your MBA is humming from electricity I would say you need to call an electrician!! That's very dangerous!!
     
  17. warfed macrumors regular

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    Apr 16, 2011
    #17
    My MBA doesn't do that (although my old Vaio did). I was talking about CPU whine in general. Nothing to do with grounding, how do you explain the noise on battery power?

    You say a CPU can't make noise, just google CPU whine instead of telling me that a CPU can't make noise because it has no moving parts.
     
  18. Boe11 macrumors 6502a

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  19. calvol macrumors 6502a

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    Feb 3, 2011
    #19
    Actually "cpu whine" is caused by the on-board voltage regulator, which is a "switching" VR as opposed to a "linear" VR, which are more expensive. What you hear is the switching VR transients that actually cause an audible noise.
     
  20. gentlefury macrumors 68030

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    #20
    The only sound mine makes is the fan.
     
  21. warfed macrumors regular

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    Apr 16, 2011
    #21
    As it should, but some products have defects.
     

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