No sound not the usual problems mac pro

Discussion in 'MacBook Pro' started by nracing, Mar 31, 2015.

  1. nracing macrumors newbie

    Joined:
    Jan 18, 2015
    #1
    hey guys, i just got a macbook pro. it came with no OS so i installed Yosemite version 10.10.2.

    the thing is the macbook has not sound at all. no output device, i use the search tool here to look for something similar but i came with nothing, I've seen some solutions like erase some files, clear memory, etc but i don't hace the files that are mentioned and I've erase the memory a lot of times, i wonder if its maybe a physical problem with the audio card or something because nothing make sense anymore.

    here is a shot of what my audio settings looks like, no output device, sound lock.


    [​IMG]

    let me know what you think

    thank you! :)
     
  2. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #2
    Have you tried restarting?

    And have you made sure the 3.5mm port is free of dust?
     
  3. duervo macrumors 68000

    duervo

    Joined:
    Feb 5, 2011
    #3
    For lack of better data to go with, I will just go with what we have ...

    There is no "audio card" in the system, at least not in the traditional sense. It's a chip on the logic board. My suspicion is that your "new" system has been the victim of a drop, or a liquid spill. That's the most common cause of hardware issues encountered in used systems that are sold to unsuspecting buyers.

    Most likely will need a new logic board. Cost can be up to ~$1000 USD (easily) for the part alone, depending on the model.
     
  4. nracing thread starter macrumors newbie

    Joined:
    Jan 18, 2015
    #4

    yes, good guess, the system suffered a drop on the audio jack part, but the funny thing is that the previous owner who was a friend had no issues with audio, when he sold me the mac (at an incredible price) he deleted the OS so i asked a guy to install the latest OS, so im also wondering if it could be an OS problem besides the obvious drop problem. if i take out the bottom part where the battery is everything seems to be ok visually.
     

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