Late 2009 iMac suddenly crazy slow

Discussion in 'iMac' started by ManuelGnR, Jan 6, 2015.

  1. ManuelGnR macrumors regular

    Joined:
    Nov 4, 2008
    Location:
    Netherlands
    #1
    I've got a 27'' iMac, late 2009 model. A few days ago, I suddenly experienced a slowness that is really extreme. I'm writing this from my MBA as the iMac has become unusable. For example: I'm trying to open system preferences right now, which is already taking a couple of minutes, I expect it to take 10 mins.

    Just for clearness: this is not a ''my five year old iMac has gotten slower, how can I speed it up'' kind of thing. Sure I noticed some aging but this happened ''overnight''. It's also not heavy use, just opening basic programs like Safari or Mail can take multiple minutes, and ain't usable after that.

    Specs:
    27'', 1 TB, 3.06 GHz Core 2 Duo, 16 GB ram (upgraded myself, the cheap kind), running Yosemite (which was working fine before).

    What I've tried:
    - I obviously have enough RAM
    - I have enough free disk space (around 50 GB)
    - Did a SMC reset
    - Did a PRAM reset
    - also deleted some stuff according to second source, will try more but takes ages to do as well.

    atm I'm trying to edit start-up programs, also planning Verify Disk and reset printer system.

    Sources used, a.o.:
    http://machmachines.com/imac-running-slow-easy-common-fixes/ (aging iMacs kind of thing)
    https://discussions.apple.com/thread/3698221 (this seems to be my situation too)

    If anyone has any good ideas or theories, they're much appreciated!
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    I'm assuming you have not installed any hardware or software recently that may have caused this and it just started on its own?

    What you are describing is the classic symptoms of a bad hard drive.
     
  3. Coldmode macrumors regular

    Joined:
    Mar 10, 2010
    #3
    As the poster above said, these are classic symptoms of a dying spinning disk hard drive. If you haven't backed the computer up recently, do so now. If you can't do it with Time Machine because the machine is so slow, you can use a Linux live CD to copy individual folders to an external drive. Out of an abundance of caution, I'd avoid having it turned on unnecessarily.

    You can also get a copy of DiskWarrior, which is really a great program for dealing with a dying hard drive. It can help copy stuff off of a failing drive. You can also use DW to test to see if your drive is actually failing, or if it's simply a seriously corrupt HFS situation (which DW would then be able to repair).
     
  4. ManuelGnR thread starter macrumors regular

    Joined:
    Nov 4, 2008
    Location:
    Netherlands
    #4
    I did install a program a few weeks ago, which I've deleted after this. All was fine after using that program.

    So it seems I need a new HDD then.. It's also this model and generation that got a free HDD replacement 1 or 2 years back, but I was stupid enough not to do so, 'cause getting it to a store and back was quite a hassle. Luckily I have a Time Machine backup from 3 days ago, I haven't been able to use it since then anyway.
     
  5. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #5
    Yeah... if it was fine for weeks after you deleted the app, that would not cause it.
     
  6. AndreBnB macrumors newbie

    Joined:
    Mar 4, 2015
    #6
    I have the same problem. Did you solve your issue ? If yes, how ? Thank you
     
  7. tdhurst macrumors 68040

    tdhurst

    Joined:
    Dec 27, 2003
    Location:
    Phoenix, AZ

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