Downgrade to Yosemite - performance improvement?

Discussion in 'MacBook Pro' started by MacSafe, Nov 12, 2016.

  1. MacSafe macrumors regular

    Joined:
    Jun 8, 2015
    #1
    Hi
    I have a 15 inch MacBook Pro mid 2009 (2.8ghz) with 4 gb of ram, running 10.11.6
    I'm wondering if downgrade to Yosemite will boost performance for this machine?
    Thanks.

    (And how to do it without losing data???)
     
  2. iizmoo macrumors 6502

    Joined:
    Jan 8, 2014
    #2
    Umm, have you thought about upgrading RAM? and while you're in there, if not done so already, maybe stick an SSD in? If you're still going to use it for a while, it's more worthwhile than downgrading the OS.
     
  3. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

    Joined:
    Jul 4, 2015
    #3
    El Capitan runs better with integrated Intel graphics. If you're using discrete GPU there won't be a difference. If you want to boost performance use Mavericks.
     
  4. MacSafe thread starter macrumors regular

    Joined:
    Jun 8, 2015
    #4
    I have SSD

    It has Nvidia graphics. Ok , how to downgrade without losing data?
     
  5. Qaanol macrumors 6502a

    Joined:
    Jun 21, 2010
    #5
    I do not know if it will do anything for performance.

    However I *can* tell you the steps to downgrade:

    1. Back up your computer. Time Machine is good.

    2. Create a bootable install disk for the OS X version you want. I recommend using a drive that connects with USB 3 or faster. USB 2 takes forever to copy the files over.

    3. Make sure your backup was successful.

    4. Boot from your install disk.

    5. Use Disk Utility to erase your start-up disk. See why the backup was important?

    6. Install the version of OS X you want.

    7. Restore your data from your backup. Time Machine makes this easy.

    I know this works because I just did it myself a few weeks ago. I backed up my computer, upgraded to Sierra, then immediately realized that some of the programs I rely on (Seil and Karabiner) do not function there.

    So I had to erase my laptop and reinstall El Capitan, then restore from Time Machine.

    Time Machine does a great job, however I had to reapply my tweaks to the system itself. For instance, I use the folder icons from Yosemite because they look way better than the gaudy newer ones, and Time Machine did not restore them so I had to copy the icons manually again.

    Also one or two programs from outside the app store made me re-enter my registration information. Boom for sure, and I think there was something else too.
     
  6. MacSafe thread starter macrumors regular

    Joined:
    Jun 8, 2015
    #6
    Thanks for your answer!
    Last time I tried I didn't have enough space to use time machine .
    Is there any alternative?
     
  7. hallux macrumors 68020

    hallux

    Joined:
    Apr 25, 2012
    #7
    You can't use Time Machine to back up onto the same physical drive, you need an external to use for your backups.
     

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