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  1. #1


    Member Since
    Apr 09, 2014
    Posts
    9
    MacBook Pro storage problems
    I have a 13 inch, mid-2009 Macbook Pro with an intermittent hardware problem.

    Yes - It's an old machine, but still useful to me if I can get it to run reliably.

    The problem is that it occasionally seems to lose access to the disk drive (Or possibly certain regions of the drive). Everything seems ok, until I need to save a file, or launch an application - and I have to restart it to get things working again. It's an intermittent problem, so it's difficult to pin-down causes. It may possibly happen sometimes when the machine is moved.

    Can anyone suggest possible causes or diagnostics?

    (other info: I'm running El Capitan, the HDD is actually an SSD I fitted (but this was a while ago - not recently when the problems started), and I've also replaced the memory and fan.)

  2. #2

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    23,850
    Specs:
    iMac, i7 4GHz, 32GB memory, 1TB Flash Storage, OS X.12.5.
    Trust you used quality memory from OWC or Crucial, both Mac specialists.

    You are running El Capitan. Boot into Recovery Mode and run Disk First Aid and see what is reported. also, when you changed the drive, did you also install a new SATA cable? They get very brittle with age and heat and replacing a drive is just the thing to crack the wiring and cause intermittent problems such as you are describing. Alas Disk Utility cannot diagnose this. Here is to how to run Recovery:-


    https://support.apple.com/en-au/HT201314
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  3. #3


    Member Since
    Apr 09, 2014
    Posts
    9
    I ran Disk First Aid from the recovery mode - and there were no problems.

    It's not a new SATA cable. The problem started much more recently than my installation of SSD and memory - so those replacements didn't cause the problem. I've tried unplugging and plugging it in at both ends - as I suspected a loose connection. But maybe it is the cable failing intermittently?

  4. #4


    Member Since
    Apr 09, 2014
    Posts
    9
    I bought and installed a new SATA cable - and it fixed the problem!

  5. #5

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    23,850
    Specs:
    iMac, i7 4GHz, 32GB memory, 1TB Flash Storage, OS X.12.5.
    Surprise surprise. The install could have weakened the original SATA cable further brutfood until it finally failed.

    Good work.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  6. #6

    IWT's Avatar
    Member Since
    Jan 23, 2009
    Location
    Born in Scotland, Worked in Scotland then England, Now live in Wales
    Posts
    2,846
    Specs:
    Late 2015 5K 27-inch Retina iMac, 4GHz i7, 32GB RAM, 1TB Flash Drive, macOS Sierra 10.12.5
    Quote Originally Posted by harryb2448 View Post
    Surprise surprise. The install could have weakened the original SATA cable further brutfood until it finally failed.

    Good work.
    Good work, but predicated on excellent advice.

    Ian
    Ian

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