Buzz sound when plug in the Magsafe

Discussion in 'MacBook Pro' started by williamh, Nov 23, 2006.

  1. williamh macrumors regular

    Joined:
    Feb 24, 2006
    #1
    I've had my MBP for 2 months now. When I plug the magsafe, it somehow produce a buzz sound, it's not loud but somewhat annoying.

    Do anyone have this issue with your MBP and Magsafe?
     
  2. sycho macrumors 6502a

    sycho

    Joined:
    Oct 7, 2006
    #2
    Are you using the three prong cable to plug it in? Give that a whirl if you have not already. It is most likely a floating ground. Do you have anything else connected, such as speakers, or anything else then plugs into an outlet?:)
     
  3. iW00t macrumors 68040

    iW00t

    Joined:
    Nov 7, 2006
    Location:
    Defenders of Apple Guild
    #3
    3 prong plug? Mine only comes with 2 prongs...
     
  4. Koodauw macrumors 68040

    Koodauw

    Joined:
    Nov 17, 2003
    Location:
    Madison
    #4
    I think you may have the notorious buzz/whine of the MPBs.
     
  5. sycho macrumors 6502a

    sycho

    Joined:
    Oct 7, 2006
    #5
    Where are you located?
    All North American MacBooks (Pros) come with both a 2 prong plug, and a 3 prong cord.:)
     
  6. williamh thread starter macrumors regular

    Joined:
    Feb 24, 2006
    #6
    I bought my MBP in Vancouver and I'm in Taiwan now.
    They share the same number of prong plug and same voltage.

    My MBP has no whine at all...

    the nizzle sound disappear as long as I unplug the magsafe....

    It's not very notcible, just somewhat annoying
     
  7. sycho macrumors 6502a

    sycho

    Joined:
    Oct 7, 2006
    #7
    It is most likely a floating ground. Try to find a cord that has the third earth prong, that will most likely resolve the issue.:)
     
  8. williamh thread starter macrumors regular

    Joined:
    Feb 24, 2006
    #8
    Thanx a lot!!
     
  9. prplmnkydshwshr macrumors newbie

    Joined:
    Nov 19, 2006
    #9
    Does this sound you are describing sound like a very faint sizzling noise? I had it on all 3 MBP C2D that I recently went through. However, it is so faint that you can only hear it when pressing your ear close to the top left of the keyboard where the MagSafe is being plugged into. It only occurs when the power adapter is plugged in and really isn't an issue.
     
  10. Chack macrumors newbie

    Joined:
    Nov 22, 2006
    Location:
    Portland, OR
    #10
    I have a slight buzz, but it's there whether or not the magsafe is plugged in. It's coming from the top right part of the keyboard. It's pretty quiet, but a little distracting. I just got this computer today and everything else seems OK, so I'm not sure if it's worth bothering with Apple. I might go back to the Apple Store and see if they all have this sound.

    Here is a video of the sound.

    It sounds much louder in this video than it does to the human ear.
     
  11. cynerjist macrumors regular

    Joined:
    Nov 8, 2006
    #11
    This worked great for me.
     
  12. Chack macrumors newbie

    Joined:
    Nov 22, 2006
    Location:
    Portland, OR
    #12
    Update: I downloaded smcFanControl and figured out that the buzz is Fan 2.

    Sooooo, is my fan abnormaly loud? Or do they all sound like this?

    BTW, I'm on a 2.33 MacBook Pro with a 160GB HD. Guess I should have mentioned that!
     
  13. setso macrumors member

    Joined:
    Nov 29, 2006
    #13

    ..i think it is anoying since it is not a steady nizzle sound
    ..
    ..it goes if you switch off one cpu (?) on c2d running the
    ..
    ..CHUD Tool (Apple) AND it's all quite in windows xp :eek:
    ..
    ..i'm using a brand new mb c2d but this all reads similar
     

Share This Page