Does your C2D MacBook make a high-pitched buzzing sound?

Discussion in 'MacBook Pro' started by other, Dec 30, 2006.

  1. other macrumors 6502

    Joined:
    Aug 18, 2005
    #1
    My MacBook is in for repair, again. However, I've spoken with Apple and they've told me that they're going to replace it when it gets back from the repair center.

    Anyway, what I'm wondering is if Apple has fixed their MacBooks so that they don't make a high-pitched buzzing sound anymore. That's why I'm asking you, MacRumors forum visitors, how your MacBooks are. The sound should come from under the top left side of the keyboard, and disappear (or at least quiet down a bit) when CPU activity goes up or if you turn off the second CPU core. It also seems to be quite a bit louder when the power cord is plugged in.

    So, the simplest way to test your MacBook (preferably C2D) would probably be to plug it in, close any CPU intense applications, put your ear next to the top left side of the keyboard and launch PhotoBooth. Any difference?

    You could also try QuietMBP, or install Apple's CHUD Tools and turn off the second core.

    I realize not everyone is bothered by this noise, and some might not even hear it when they're using their computer to do regular work. That's why I'm asking you to put your ear next to the MacBook and listen, because it really annoys me when I'm working someplace quiet. I really hope Apple have fixed this, since they did fix it for the MBP (kbase article).

    So, how does your MacBook sound? :)
     
  2. Mac'Mo macrumors 6502a

    Mac'Mo

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    Aug 29, 2006
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    NYC
  3. other thread starter macrumors 6502

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    Aug 18, 2005
    #3
    I'm assuming you're talking about the C2D MacBook, but if would be helpful if you (and other people who reply) would specify that.

    I really appreciate your help, thank you!
     
  4. flopticalcube macrumors G4

    flopticalcube

    Joined:
    Sep 7, 2006
    Location:
    In the velcro closure of America's Hat
    #4
    Quiet as a church mouse

    Machine Name: Mac
    Machine Model: MacBook2,1
    Processor Name: Intel Core 2 Duo
    Processor Speed: 2 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2
    L2 Cache (per processor): 4 MB
    Memory: 2 GB
    Bus Speed: 667 MHz
    Boot ROM Version: MB21.00A5.B00
     
  5. other thread starter macrumors 6502

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    Aug 18, 2005
  6. Mac'Mo macrumors 6502a

    Mac'Mo

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    NYC
    #6
    im kinda scared because i know people on this forum who have said that the problem kicked up after a few months. So dont get to comfortable with the silence!
     
  7. roxnadz macrumors regular

    Joined:
    Feb 15, 2006
    #7
    My C2D makes absolutely no noise at all.

    Now I just wish I could figure out my weird wifi/streaming issue...
     
  8. clicq macrumors member

    Joined:
    Nov 11, 2006
    #8
    My Macbook (C2D) has the CPU whine/buzz that goes away when Photobooth is open. Others seem to have the issue as well, as reported in another thread http://forums.macrumors.com/showthread.php?t=253600&page=2. I can only hear it in a quiet room though, and even then only if my ear is within 6 inches of the top left corner.

    This has also been discussed on Apple's forums:
    http://discussions.apple.com/thread.jspa?messageID=3724217&#3724217
    http://discussions.apple.com/thread.jspa?messageID=3133008&#3133008
    and more if you just search there for CPU whine. I think whether you hear it or not is very dependent upon your hearing acuity and how loud the particular Macbook is -- I believe all of them do , but some are probably louder than others...

    I've personally heard it on a Core Duo IBM Thinkpad as well, and my desktop PC makes the same noise (though that I can only hear with the case off and my ear very close to the CPU), so it's definitely not limited to Apple.

    But despite saying this, I do want to emphasize that it doesn't bother me, and any other noise masks it. (When I first got it, it did annoy me just because I actually started to notice it all the time -- sort of like once you notice a dead pixel on an LCD, it just jumps out at you -- but until Apple acknowledges it as a problem and has a real fix for it, I'm not going to waste my time worrying about it).
     
  9. chatoyer macrumors regular

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    Dec 11, 2006
    Location:
    Te Wai Pounamu, New Zealand
    #9
    I hear the whine in quiet rooms (MB C2D 2Ghz; 2GB RAM). Unacceptable on the part of either Apple or Intel. I hear it's present on other laptops/notebooks with C2D chips, so it's hardly entirely Apple's fault, but then I'm not entirely certainly it's just the CPU.
     
  10. other thread starter macrumors 6502

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    Aug 18, 2005
    #10
    To you who claim your MacBook is completely silent: are you putting your ear next to the top left of the keyboard and listening?
     
  11. peter202 macrumors member

    peter202

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    Sep 2, 2006
    Location:
    Corby, United Kingdom
    #11
    Yeah i get it every now and then. have only noticed it when plugged in and im in a quiet room. Should i worry?
     
  12. Hadley macrumors member

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    Dec 20, 2006
    Location:
    Philadelphia, PA
    #12
    if you really need to be that close to a specific part of the keyboard to hear this sound while intently listening, is it that much of a problem? my mbp is silent, even with a stethoscope to the top left corner of the keyboard.
     
  13. other thread starter macrumors 6502

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    Aug 18, 2005
    #13
    Like I said in the first post:
     
  14. adrianblaine macrumors 65816

    adrianblaine

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    Pasadena, CA
    #14
    I only hear my MBP C2D when it is in a silent room and even then it just sounds like the fan running. I've always thought it ran louder than I thought it would.
     
  15. CrzyCanuck72 macrumors 6502a

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    Jun 10, 2003
    #15
    my C2D Macbook emits the buzzing, but it is only audible when the Magsafe cord is attached. It is reduced by running Photobooth, as others have found...
     
  16. flopticalcube macrumors G4

    flopticalcube

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    #16
    Yes, but my hearing acuity isn't great. Fan noise or "CPU whine" is a different noise from what the OP was looking at. I believe this is a power supply problem.
     
  17. Aniej macrumors 68000

    Aniej

    Joined:
    Oct 17, 2006
    #17
    my powerbook G4 actually does this, but only when I am carrying it around. someone suggested it is the feature that prevents harddrive damage if you drop it or sudden motion occurs. while i think that is normally correct and a great feature, i actually don't think it was in place when i received my powerbook, as such i really don't have a darn clue what is causing it, but i guess less mid-operation flight of my powerbook would do the trick.
     
  18. The Stig macrumors 6502a

    The Stig

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    Nov 4, 2006
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    On the track
    #18
    Noise?

    My C2D macbook does make a whinny noise but it is SO quite that I can't hear it unless I put my head up to it or the room I'm in is so quite that you can hear a pin drop. So unless taking a nap and using my MB as a pillow or I'm in a room where the sound from my keyboard is the loudest thing, I'm ok with it.

    The Stig
     
  19. flopticalcube macrumors G4

    flopticalcube

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    #19
    I'm confused. Doesn't everyone sleep with their MB under their pillow? :confused:
     
  20. mike5732 macrumors newbie

    Joined:
    Oct 28, 2006
    #20
    I have been noticing the high pitched noise for quite a while now. It is only loud when I have the power plugged in. I have also found that it seems to only happen when the battery is charging, though this could be my imagination. Also the pitch does change depending on what the cpu is doing. For instance I have dock magnification on and the noise goes away when I move the mouse over the dock. It also temporarily goes away when I hit the expose button or things like that.

    I have a 1.83 core duo (not C2D). I can hear it in a quiet room. It is clearly audible without putting my ear to the computer.
     
  21. other thread starter macrumors 6502

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    Aug 18, 2005
    #21
    Well, they changed my logic board. It still whines, and I believe it's at the same volume as before. So, all MacBooks whine?
     
  22. cercina macrumors newbie

    Joined:
    Jan 3, 2007
    #22
    Yeah experienced this as well the first days I got my MB C2D, however "Shhmbp" removed the whine instantly:)
     
  23. other thread starter macrumors 6502

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    Aug 18, 2005
    #23
    I'm guessing it also shortens battery life.
     
  24. CodyJ macrumors newbie

    CodyJ

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    Sep 18, 2006
    #24
    None here

    Thankfully I haven't had any problems... yet (knock on wood) other than not having wireless access everywhere I go due to the ****** location I am currently residing.

    Thank god for Burger King and Del Taco Open Access!
     
  25. scott523 macrumors 6502a

    Joined:
    Sep 8, 2006
    Location:
    St Charles, MO
    #25
    Whoa, I just gave ShhMBP a try and omg, the high pitch noise is gone! There's still a little whine but it's only audible when my ear is 3 inches from my the keyboard compared to the buzz which could be heard at least 6 inches away. :D :eek:
     

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