Hardware Problem with my iMac

Discussion in 'iMac' started by Kibato, May 25, 2011.

  1. Kibato macrumors newbie

    Joined:
    May 25, 2011
    #1
    I have serious problems with my iMac (21.5-inch, Mid 2010, 8GB Ram). I work mostly with the Adobe Creative Suite CS5, Windows XP @ VMWare Fusion, iWorks, etc, and now for the third time in a timespan of 4 months, the iMac freezes and makes an extremely loud (nonstop) noise.
    This time I managed it to record a video.:

    http://www.youtube.com/watch?v=EDJmZXDtZMw

    I've already sent the iMac to a Service Provider some weeks ago and they changed the HDD, but it seems that this was not the problem..

    Anyone ever heared such a loud noise coming from an iMac? :(
     
  2. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
  3. Georgio macrumors 6502

    Georgio

    Joined:
    Apr 30, 2008
    Location:
    Essex, UK
    #3
    That is not good.

    I remember years ago when we had the original G3's at work one of them suddenly gave out an ear-splitting screech followed by an equally loud impact sound, just like a traffic accident.

    I contacted the company that were responsible for keeping the Macs in good order and he reckoned we had a terminal Mac which turned out to be the case.
    It would seem that certain noises are programmed in to let you know a 'crash' is imminent.
     
  4. Kibato thread starter macrumors newbie

    Joined:
    May 25, 2011
    #4
    Already did several times.
    Anyone knows a reliable memory testing program for intel based iMacs?
     
  5. Georgio macrumors 6502

    Georgio

    Joined:
    Apr 30, 2008
    Location:
    Essex, UK
    #5
    You say you have 8GB of RAM installed.
    Is the extra RAM a reputable brand i.e. Crucial/Kingston etc.?
    If you look in profiler/memory, does everything check out in there regarding speeds etc.?
    I would actually try removing the extra RAM and carry on working with the stock 4GB and see if that resolves it.

     
  6. interslicer macrumors member

    Joined:
    Oct 14, 2010
    #6
    thats a pretty horrifying sound. is it coming from a component or is it playing out of the speakers? if its a component sound, because of the repetitive nature im pretty sure it would have to come from something spinning. that pretty much boils down to HDDs, disk drives, and fans (including one on the gpu if applicable). if its coming out of the speakers it could be a software thing that poses no real danger to the computer. some times when things freeze they loop sound, but without more data on what was running, etc i couldnt tell you what it was.
     

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