After enabling TRIM the SSD can't recognize as internal drive

Discussion in 'Mac Pro' started by artoff, Sep 21, 2015.

  1. artoff macrumors member

    artoff

    Joined:
    Dec 30, 2014
    Location:
    Armenia
    #1
    Hello Guys

    I have Samsung 840 Pro 512 gb SSD connected to my Mac Pro with Syba SATA III 4 Port PCI-e controller . On Mavericks i was used the
    3rd Party SATA Kext and i had no problems. But On Yosemite and on El Capitan when i'm enabling Trim with termninal after restarting the system i see the SSD connected with controller is not shows internally. I see Yellow icons..

    who can help me or maybe no need to enable trim?

    thanks

     

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  2. ghislain macrumors member

    Joined:
    Apr 22, 2009
    #2
    I also have a Samsung 840 Pro 512 gb SSD connected to my Mac Pro through TB and with TRIM enabled. It appears on desktop with a yellow icon (external disk), and works like a charm. No problem...
     
  3. artoff thread starter macrumors member

    artoff

    Joined:
    Dec 30, 2014
    Location:
    Armenia
    #3
    oh, that's great. I thought that could affect on speed.
     
  4. adam9c1 macrumors 65816

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #4
    I thought 10.11 has native TRIM support for third party drives.
     
  5. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #5
    It's nothing to do about TRIM, in your case, the SSD most likely always be considered external if you check the system info carefully (even in Mavericks).
     
  6. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #6
    Any drive connected to your Mac Pro through PCIe will show up as an External Drive. Has nothing to do with TRIM or Drive Type (SSD, SSHD, HDD or Optical). This poses no problems or issues.

    And YES - TRIM should be enabled!

    Lou
     
  7. artoff thread starter macrumors member

    artoff

    Joined:
    Dec 30, 2014
    Location:
    Armenia
  8. mbosse macrumors regular

    Joined:
    Apr 29, 2015
    Location:
    Vienna, Austria
    #8
    Lou, this means TRIM is automatically enabled with El Capitan once any SSD is fitted into the system?
     
  9. jimj740 macrumors regular

    jimj740

    Joined:
    Jul 25, 2013
    Location:
    Pining for the company that once gave us Clarus
    #9
    I'm not Lou...

    However the TRIM functionality must me manually enabled for non Apple SSDs.

    -JimJ
     
  10. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #10

    I am:p Trim needs to be enabled (with a non Apple SSD) with the TRIM command in the Terminal. Once enabled, it will stay enabled during subsequent OS Updates. If you should want to disable TRIM, you would need to do it with another Terminal command.

    Lou
     
  11. mbosse macrumors regular

    Joined:
    Apr 29, 2015
    Location:
    Vienna, Austria
    #11
    So this means that TRIM would stay active even if I upgrade between major versions, e.g. from 10.10.5 to 10.11?
     
  12. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012

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