Odd "tink" sound from MBP both in use and in sleep mode...

Discussion in 'MacBook Pro' started by mousouchop, Oct 2, 2009.

  1. mousouchop macrumors 6502a

    mousouchop

    Joined:
    Oct 22, 2008
    Location:
    New York
    #1
    Okay, I just searched google and did forum search and was unable to find anyone describing my exact problem soooo, here is goes.

    I just got a new 15" MBP, and I am loving it. I like to lay in bed sometimes when watching TV, and place the Macbook on my chest while I browse the net and chat with friends, I am sure we are all guilty of this. haha. It's sorta comfy. :p

    Anyways, this is when I first noticed this "tink" noise. It is very light, and distinct, and definitely metallic. I can only assume it is the HD head parking or whatever. However, in efforts to calibrate my battery, I allowed the battery to go completely dead last night. I have yet to plug it in to charge this morning, but I was handling my MBP anyways, just to get a feel for the new size, and the "tink" sound was still occurring-- even in this state of "deep" sleep.

    Am I wrong in assuming that this sound is my HD? Moving the computer around quickly doesn't always produce the sound 100% of the time. But sometimes I get a single "tink", other times a couple in a row, and sometimes I can get movie it in such a way that I get consecutive individual "tinks."

    I am just perplexed that this is all happening while the computer is essentially OFF completely...

    Is this sound actually the case and caused by the pressure of my chest? (I am skinny 115lb guy, the computer rests on bone essentially. haha.) When I experienced the sound while operating the computer, I did not experience any system lock-ups or anything. Is this just a superficial sound? Or something worse? haha. I am thinking it is nothing.

    Any ideas? :p
     
  2. WeeShoo macrumors regular

    Joined:
    Jul 7, 2005
    Location:
    North Carolina
    #2
    My 13'' uMBP does the same exact thing, normally when it is sleeping, and when I pull it out of my bag, i grab it from the right front corner, and it almost always tinks.
     
  3. mousouchop thread starter macrumors 6502a

    mousouchop

    Joined:
    Oct 22, 2008
    Location:
    New York
    #3
    Hmmm, I read in Apple Support forums that there are springs that support the bottom panel and keep pressure on it from causing it to come into contact with the logic board and other internals... I suppose that would make sense, and the sound could very well be a spring... any one have a better idea? :p

    See post here: Re: Macbook Pro making weird creaking noises?
     
  4. cababah macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #4
    I thought the tink is the hard drive "anti-shake" thing or whatever the technical term for it is?
     
  5. mousouchop thread starter macrumors 6502a

    mousouchop

    Joined:
    Oct 22, 2008
    Location:
    New York
    #5
    In most cases I believe that is what the sound is. That is what I thought it was at first too...

    But the sound is occurring even when my laptop is off. It isn't a loose part seeing as shaking it does not produce the sound. But some pressure on the bottom panel can produce it, not 100% of the time, but it happens. The spring theory in that post makes almost complete sense.
     
  6. mousouchop thread starter macrumors 6502a

    mousouchop

    Joined:
    Oct 22, 2008
    Location:
    New York
    #6
    I opened up the bottom of my MBP, and the logic board does indeed have several spring loaded pegs that I can only assume come into direct contact with the inside of the bottom panel and under concentrated pressure (i.e. picking up one handed), make a "tink" like noise (metal vs. metal).

    Again, just a theory... but I am convinced. :p
     
  7. 7even macrumors 6502a

    Joined:
    Jan 11, 2008
    #7
    Yeah I think mine does this same exact thing, except I can reproduce it reliably and it happens more often.
     
  8. JonJonJon macrumors newbie

    Joined:
    Nov 22, 2009
    #8
    Brand new MBP makes 'tink' noise when stationary

    Nope, my brand new MBP makes the 'tink' noise fairly regularly (haven't paid that much attention) when it is entirely stationary. I haven't noticed the sound at all when the laptop is off or in sleep mode. I wonder what it can be?
     
  9. Tiki35 macrumors 6502

    Joined:
    Oct 25, 2009
    Location:
    Nanoose Bay, BC, Canada
    #9
    It does it too on my new MacBook Pro 15 inch. I am sure it is the hard drive. I have heard the same sound before on my Dell notebooks too. This is one of the reasons I am looking forward to replacing it with an SSD once the prices come down a bit.

    Disabling the Sudden Motion Sensor and changing the hdapm had no effect either.
     
  10. sb88 macrumors newbie

    Joined:
    Nov 18, 2009
    #10
    Could your sound be equated to a candy wrapper crinkling? I have this sound when on and in use, asleep, completely off, battery dead, and several other times. SO odd! Couldn't reproduce at Apple store so geniuses could not do anything
     
  11. Dkota05 macrumors newbie

    Joined:
    Aug 28, 2008
    #11
  12. mousouchop thread starter macrumors 6502a

    mousouchop

    Joined:
    Oct 22, 2008
    Location:
    New York
    #12
    YES! That is EXACTLY what mine sounds like! I haven't got a solution for it... I thought of opening up my case again and putting a small square of electrical tape on all the points in the case where it looks like there is contact-- but I haven't had the motivation to open up my computer again.
     
  13. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #13
    Happens with my old 15" MBP too. Its always done it and nothings gone wrong with it so I assume its fine :D
     
  14. mousouchop thread starter macrumors 6502a

    mousouchop

    Joined:
    Oct 22, 2008
    Location:
    New York
    #14
    I am kinda of wondering if getting an Incase Hardshell Case for my MBP would remedy this problem by dissipating the pressure on the bottom case and avoiding whatever stress causes this annoying sound. Then I my MBP will be a little more bulky and heavier-- albeit better protected.

    Anyone with an Incase hear this sound ever?
     
  15. wesrk macrumors 6502a

    Joined:
    Nov 4, 2007
    #15
    I started to hear it on my cousins macbook pro too, just like a tink maybe every 2 minutes, then it stopped for a long while and came back... weird.
     
  16. Dkota05 macrumors newbie

    Joined:
    Aug 28, 2008
    #16
    I've managed to get rid of the noise on mine, somehow. It was definitely coming from the bottom case, mostly from directly below the trackpad. I just put both hands around either side of the trackpad, my thumbs on the bottom of the case, and squeezed both together a bit....did this a few times and rarely do I ever hear the "tink" anymore. Worst explanation ever I know, but it worked for me.
     
  17. Sir Cecil macrumors 6502a

    Joined:
    Mar 31, 2008
    #17
    Apparently, all the UMBPs do it. It's so subtle that most don't even notice, but once it gets the attention in a silent environment, it's really annoying. Sounds almost like someone winding a watch slightly, every few seconds.
    My 17" UMBP did it, and so did the previous 15". Two friends have the same sounds with their MBPs. There have been hundreds of posts on this here and elsewhere. No real solution has been found to my knowledge, apart from getting an SSD. The cause is generally thought to be the sudden motion detection system's affect on the HD. Hopefully, the new models will have cured this.
     

Share This Page