TRIM support for 3rd Party SSD

Discussion in 'MacBook Pro' started by Jamieserg, Apr 8, 2016.

  1. Jamieserg macrumors member

    Sep 1, 2010
    I'm looking at buying a 3rd Party SSD to get some speed improvements for my aging Macbook Pro. I've heard conflicting information as to whether TRIM is possible for a 3rd Party SSD or it's still something that Apple don't allow.

    Thanks in advance!
  2. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    On OS X TRIM is not enabled by default with third party drives, but with the newer OS versions Yosemite and El Capitan it is very easy to enable. Just install the drive and the OS then run the command below in Terminal and reboot and you will have TRIM.

    sudo trimforce enable
  3. Jamieserg thread starter macrumors member

    Sep 1, 2010
    That's great! I'll buy an SSD now!
  4. RevToTheRedline macrumors 6502a


    Sep 27, 2007
    Yep, force enabling trim on 3rd party even thunderbolt externals is quite simple as shown above with the terminal command, did it on my samsung 850 evo that i have in a thunderbolt enclosure.. OS X sees the drive as a SMART/TRIM enabled SATA PCI-E connected drive, i love it.

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