Does your magsafe do this?

Discussion in 'MacBook Pro' started by vbman213, Jul 24, 2010.

  1. vbman213 macrumors 6502

    Joined:
    Apr 13, 2010
    #1
    Well the first thing, if you press it up against your ear, can you hear a buzz. And second, when the computer is on, does the tone of that "buzz" change when you move you hand on the trackpad?

    I'm experiencing some very weird stuff here.
     
  2. Jaro65 macrumors 68040

    Jaro65

    Joined:
    Mar 27, 2009
    Location:
    Seattle, WA
    #2
    Sorry, I personally never felt a need to press the magsafe connector against my ear. Were you particularly bored today? :cool:
     
  3. vbman213 thread starter macrumors 6502

    Joined:
    Apr 13, 2010
    #3
    No, my computer was sleeping and I was reading a book at my desk. And I was hearing a buzz that sounded like AM radio hiss at very low volume.
     
  4. sadcamper macrumors regular

    Joined:
    May 19, 2010
    #4
    I've never heard any noise coming from the magsafe...try plugging it into another receptacle in your house.
     
  5. Patrick J macrumors 65816

    Patrick J

    Joined:
    Mar 12, 2009
    Location:
    Oporto, Portugal
  6. eng42ine macrumors 68000

    eng42ine

    Joined:
    May 2, 2010
    Location:
    Running into a burning building...
    #6
    That's getting old........
     
  7. nOw2 macrumors regular

    Joined:
    Sep 1, 2009
    #7
    The PSU on my new MBP does this.

    It's normal, though it could have been designed out by Apple.

    The change in noise when you do something on the computer is the PSU adapting the amount of power being delivered.
     
  8. Pentad macrumors 6502a

    Pentad

    Joined:
    Nov 26, 2003
    Location:
    Indiana
    #8
    Really? Mine tells me all sorts of stuff...that I should burn things and that everyone I know is against me.

    To be fair, its hard to hear over the leprechaun at times...
     
  9. SparkleX macrumors newbie

    Joined:
    Aug 17, 2009
    Location:
    Germany
    #9
    I have the same problem.

    To get to the point: Don't bother, you can't do much about it ;)

    I already brought it in to an Apple Store, and they built in a new logic board and magsafe connector.
    The first weeks after that repair, it was completely quiet, but it suddenly reappeared. It's the same with my girlfriend's macbook, so seems to be normal.
     
  10. therocket macrumors member

    Joined:
    Apr 11, 2010
    #10
    +1

    LOL
    :D:D:D:D
     
  11. mgartner0622 macrumors 65816

    mgartner0622

    Joined:
    Jun 6, 2010
    Location:
    Colorado, USA
    #11
    Hello-

    I have an older MacBook Pro and 2 AC Adapters.

    I have 1 Older Style (White Tip) & 1 Newer (Silver) AC Adapter

    The older Adapter does not make this noise, however the newer silver one does. I think it's something with the different design that causes the issue.

    As long as it's not dangerous it doesnt bother me, and I usually have a ceiling fan on that drowns it out. :)
     
  12. TZRaceR6 Guest

    TZRaceR6

    Joined:
    Jun 8, 2010
    Location:
    United Kingdom
    #12
    Strange. I have an 07 MacBook, an 08 MacBook and a new 2010 MBP. None of them have made any noise like described here.
     
  13. vant macrumors 65816

    Joined:
    Jul 1, 2009
    #13
    It makes a noise if you don't use the ground plug (Double prong only).
     
  14. AlphaDogg macrumors 68040

    AlphaDogg

    Joined:
    May 20, 2010
    Location:
    Boulder, CO
    #14
    Is it the charger "box" making the sound or is it like the connector?
     
  15. vant macrumors 65816

    Joined:
    Jul 1, 2009
    #15
    "box".
     
  16. mgartner0622 macrumors 65816

    mgartner0622

    Joined:
    Jun 6, 2010
    Location:
    Colorado, USA
    #16
    Nope, I have the noise for both, it's just a lot louder without the grounded plug.
     
  17. Syonidism macrumors regular

    Joined:
    Feb 10, 2009
    Location:
    Turkey
    #17
    ive had this with many many power adapters.

    This is because the power adapter is adapting the power output of your power socket to fit your computers needs. that hiss youre hearing is the resistance inside the adapter at work. Its perfectly normal.

    what isnt normal is the fact that your power outlet is having variances on power output. This happens regularly in Turkey and is a major douche for the life expectancy of your battery.

    if youre kinda still prickly on the subject i suggest you get a extender with a fuse inside it. That way if your power outputs go up where your adapter cand adapt and fail the actual power socket will fail instead of your AC adapter which costs 200 euros in Turkey.
     
  18. TuffLuffJimmy macrumors G3

    TuffLuffJimmy

    Joined:
    Apr 6, 2007
    Location:
    Portland, OR
    #18
    The buzz is the processor idling at a frequency slow enough for you to hear. When you use the cursor with the trackpad it ups the frequency out of audible range.


    I just pulled that out of my ass, but I've heard something about processors buzzing.


    EDIT: This makes so much more sense than what I said.
     
  19. weckart macrumors 68040

    Joined:
    Nov 7, 2004
    #19
    Please tell me you meant to write TL200 and not €200 :eek:
    They recently went on sale here for £28 each at Play.com (now back at normal price).
     
  20. IndianSteveJobs macrumors newbie

    IndianSteveJobs

    Joined:
    Jun 4, 2010
    Location:
    India
    #20
    Check your electric-socket earth connection. The buzz is because, a low voltage is passing through your body for earthing.

    Immediately check your earth connection. Otherwise, when you not discharged, because of static electricity small components may get damaged.

    One tip: Get discharged frequently. (you are statically being charged dude!) :eek: :D
     

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