lagging after HD swap

Discussion in 'MacBook Pro' started by hellbent, Nov 12, 2011.

  1. hellbent macrumors newbie

    Joined:
    Aug 29, 2008
    #1
    ok so i just swapped out my stock 250gb hd for a new western digital 750gb 7200rpm drive. It works fine, it boots up, and has all my files on it, but its really laggy. Its not a constant lag, but instead it will be completely fine for 5-10 minutes and then freeze for 1-2 minutes. It gets really bad especially when i watch a movie on itunes. This really doesn't make sense to me, I had been using it as an external drive in an enclosure for a few months prior to installing it, but i dont see how that could be an issue. It also seems to occasionally make a slight buzzing noise...any ideas?
     
  2. hellbent thread starter macrumors newbie

    Joined:
    Aug 29, 2008
  3. miker2209 macrumors regular

    miker2209

    Joined:
    Jan 2, 2010
  4. kulcha macrumors newbie

    Joined:
    Mar 21, 2004
    #4
  5. hellbent thread starter macrumors newbie

    Joined:
    Aug 29, 2008
    #5
    hey its a 15 inch macbook pro 5.4, late 2008 model
     
  6. Smork macrumors member

    Joined:
    Jul 14, 2011
    #6
    From what I have experienced and read here,

    Is this on Lion? If so, it may be indexing for a little while.

    Some people experience buzzing/movement from the laptop when installing a 7200 rpm hard drive, some don't. I personally have installed a Seagate Momentus XT drive and have yet to experience any issue with the hardware.

    If the buzzing bugs you, return the drive and grab a different one.
     
  7. kulcha macrumors newbie

    Joined:
    Mar 21, 2004
    #7
    hellbent, try downgrading your EFI firmware, please follow the link in my previous post.
     
  8. hellbent thread starter macrumors newbie

    Joined:
    Aug 29, 2008
    #8
    ive looked into downgrading my firmware, but i cant find where it say how to do it. How do i go about downgrading it?
     
  9. kulcha macrumors newbie

    Joined:
    Mar 21, 2004
    #9

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