MacBook Pro (2012 Non Retina) running slow after swapping HDD

Discussion in 'MacBook Pro' started by jwatters579, Sep 16, 2016.

  1. jwatters579 macrumors newbie

    jwatters579

    Joined:
    Jun 20, 2015
    #1
    Has anyone experienced this? I swapped the HD out of my iMac to my Macbook Pro. Both systems were running at a good speed prior. Once I did the swap, I noticed the Macbook was running slower (more color pinwheels, slower speeds trying to complete tasks, etc). Would it be a good thing to do a fresh install of OS?
     
  2. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    Likely HDD SATA cable is on its way out. It's a very common fault on your model. Quite a cheap part to source and very quick repair. Ensure it's a brand-new genuine part rather than a refurb though.

    If you haven't already, I'd recommend swapping with an SSD. Even with a fresh HD/OS install, the newer OSs don't run that well on a spinning drive.
     
  3. Fishrrman macrumors G4

    Joined:
    Feb 20, 2009
    #3
    keys' suggestion about the cable is good advice.
    You can test this by connecting the original HDD via USB, and booting that way.
    Do you get a reasonably good bootup and performance afterwards?

    Aside:
    You should have bought a new SSD and put that into it, instead.
    Will make A WORLD of difference.
    You won't understand until you do it!
     

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