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Installed a SSD, do I need TRIM?

881 Views 4 Replies Latest reply: Jan 10, 2013 12:29 AM by clintonfrombirmingham RSS
Andy :] Level 2 Level 2 (400 points)
Currently Being Moderated
Jan 9, 2013 11:37 PM

Hello everybody.


I recently installed a SSD on my Macbook Pro (Intel 330 series) running 10.7.3 currently. I was wondering if I should installed a problem like TRIM enabler to enable TRIM or if Garbage Collection is sufficient enough. This is my 1st time having an SSD so an help will be very appreciated



  • clintonfrombirmingham Level 7 Level 7 (26,790 points)
    Currently Being Moderated
    Jan 10, 2013 12:12 AM (in response to Andy :])

    I would - I have a 512GB Crucial m4 SSD and I've had TRIM enabled since I installed the SSD. To find out more about TRIM - see this article from Wikipedia. It just keeps you SSD 'healthy'.


    And I use TRIM Enabler to enable TRIM - just be aware that with every software update (going from 10.7.3 to 10.7.5 - which I would recommend doing) you must use TRIM Enabler AGAIN.


    Good luck,



  • clintonfrombirmingham Level 7 Level 7 (26,790 points)
    Currently Being Moderated
    Jan 10, 2013 12:27 AM (in response to Andy :])

    Here's the System Info on my SSD:




      Capacity:    512.11 GB (512,110,190,592 bytes)

      Model:    M4-CT512M4SSD2                         

      Revision:    040H   

      Serial Number:    000000001205032CC056

      Native Command Queuing:    Yes

      Queue Depth:    32

      Removable Media:    No

      Detachable Drive:    No

      BSD Name:    disk0

      Medium Type:    Solid State

      TRIM Support:    Yes

      Partition Map Type:    GPT (GUID Partition Table)

      S.M.A.R.T. status:    Verified



      Capacity:    209.7 MB (209,715,200 bytes)

      BSD Name:    disk0s1

      Content:    EFI

    Macintosh HD:

      Capacity:    511.25 GB (511,250,432,000 bytes)

      Available:    369.54 GB (369,544,036,352 bytes)

      Writable:    Yes

      File System:    Journaled HFS+

      BSD Name:    disk0s2

      Mount Point:    /

      Content:    Apple_HFS

      Volume UUID:    A010BEA0-E0B9-3EDC-B13D-BAB093AC4E57

    Recovery HD:

      Capacity:    650 MB (650,002,432 bytes)

      BSD Name:    disk0s3

      Content:    Apple_Boot

      Volume UUID:    3F8BD124-7B04-32BB-ABDA-D56C533E81F6


    As you can see, TRIM is enabled.


  • clintonfrombirmingham Level 7 Level 7 (26,790 points)
    Currently Being Moderated
    Jan 10, 2013 12:29 AM (in response to Andy :])

    I've never had an issue with the app - like I said, though, (and this holds true even if you use Terminal to enable TRIM support) each time that there's a .1 update to OS X, you must enable TRIM again. Not too big a deal - you just have to remember to run it again, restart, and - voila! - TRIM support is back.




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