Booting from an external ssd?

Discussion in 'Buying Tips and Advice' started by Stratoandrea94, Oct 22, 2014.

  1. Stratoandrea94 macrumors newbie

    Oct 22, 2014
    Hi! I have been reading some discussion but my dubt is still living. Last year I bought an Imac and maybe I made a mistake, because mine doesn't have an internal ssd (or fusion drive) and it runs a bit slow. Yesterday I discovered a guy that with an Usb 3.0 enclosure and a Samsung 840 evo had a read/write speed on the disk that reached 400 Megabyte/s but in this way there is not trim support.
    I would want to boot from that disk but without trim is safe?
  2. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    It won't ruin the SSD or anything, but potentially over a long period of time the write speeds may slow because of the lack of TRIM.

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