TRIM Support Enabler 1.1

Whats new:

  • Fixes problems with long boot times
  • Restore driver button
  • Backup driver button
  • Automatic updates

Will add a page for TRIM Enabler explaining the app…


Did you already patch and don’t have backup to restore?
You can try using Restore and selecting Default driver.


  1. scott April 26, 2011 Reply

    wow!!!! insane. After several reboots my macbook pro 2010 with ocz agility 2 240gb ssd is now so fast i can not keep up!

    great great job! great to see a young programmer making such use of talent!

    only concern is… i read some reports of people having problems on here. I hope that the fact that it works now does not mean i will have problems as the next days or weeks go by.


  2. scott April 26, 2011 Reply

    how would i disable trim and go back to like it was before.

    stupid of me – i did not do a superduper back up before i did the patch.

    any way of disabling?

  3. Cindori April 26, 2011 Reply

    Yes, click the Restore button

  4. Michael May 6, 2011 Reply

    Thanks for that nice piece of software. It works on two of my Macs without any problems. But on my Mid 2009 MacBook Air 2,1 (10.6.7) with the OWC Mercury Aura 120GB SSD, the system hangs sometimes and I realized, that I cannot boot into safe mode. The boot-caches seem to clear, but i don’t get beyond the Logo-Bootscreen with the spinning wheel… I restored the original kext and everything works again.

    Any tips for that?


  5. Dave Bullock May 11, 2011 Reply

    So I am able to run the installer and after rebooting I see that TRIM support is enabled. However, when I try and delete files it takes 50x longer than before. This is a problem as I frequently deal with large collections of small files in my day to day software development. I have restored and that fixed the problem. Is this a bug or a feature?


  6. TheCoop May 14, 2011 Reply

    2011 Macbook Pro 8,1
    120 GB Intel 320 series drive (SSDSA2CW120G3), multiple partitions for Win7/Ubuntu
    Patch was fine, TRIM is enabled in the system profile, so far so good

  7. mzeb May 17, 2011 Reply

    @Cindori: I’ve got a new version of the IOAHCIFamily.kext (2.0.6) that came from a quietly updated version of the MacBook Pro Software Update 1.4. Any chance you might be able to work the same magic on this as you did for the 2.0.5 IOAHCI kext? Thanks!

  8. Author
    Cindori May 17, 2011 Reply

    school exams now, no developing for at least 2 weeks

  9. mzeb May 17, 2011 Reply

    Understood :-). Good luck with exams!

  10. mike May 18, 2011 Reply

    Hmmm Tried it on my crucial C300 64gig and I got almost 100 points lower on the xbench test. random write 4k blocks dropped from 68.57 to 5.68 MB/sec. mike

  11. Jerry May 18, 2011 Reply

    Awesome. This really super charged my intel x25-m g2. I am getting better results then when it was brand new. xbench has has steadily increased over the last couple of days.

  12. Nate May 21, 2011 Reply

    “Dave Says:
    April 7th, 2011 at 4:56 am

    I have tried Trim enabler 1.1 on my MacBookPro 3.1 with a Crucial C300-256 (firmware 0006). It worked but the Prefomance of the SSD poor.
    Without trim i always had Xbench disk scores around 230 (MBP 3.1 has only SATA 1.5 speed). With trim enabled i got scores around 150-170. It was not only xbench, the whole computer behaved slower. I have waited several days, but disk speed has not increased at all. So I have disabled Trim afterwards and now I am back at 230 again.”

    Same problem with an Intel X-25M 120GB. Start up time went from 6 seconds to 20. Shutdown times from 4 seconds to 10. Used the backup kext and all is well again. This is on the 2010 MBP13. Will keep the program in case I see a degradation in speed. Also observed slower emptying of trash, but that I could live with, but not the increased boot times.

  13. Denis June 7, 2011 Reply

    Have been using Intel’s 320 160G on MBP 4.1 for like three weeks without TRIM enabled. Degraded startup time (25 sec) and especially shutdown time (5 sec).
    After TRIM enabling startup 16 sec, shutdown less than 2 sec.

    Is there still sense to recondition disk from time to time, I mean like using diglloyds disktester? I tried to run it just after ‘trim enable’, it shows uniform rw speed at all offsets.

  14. CraigH June 7, 2011 Reply

    Ran it on my MBP 8,2. Crucial M4 512GB SSD. Xbench scores are pretty similar as before: 273 Sequential, 1342 Random.

    Trim now shows up enabled. No spinning beachballs (yet). Other posts indicate I’ll get some, but nowhere near the 30-90 seconds out of every 5 minutes like before…

    Great tool. Thanks Cindori for a simple and highly useful tool

  15. CraigH June 8, 2011 Reply

    Update: After 4 hours of nearly continuous use, some quite heavy, I got one hang condition that persisted for 30 seconds. Otherwise, system is extremely fast and responsive. Not ideal, but productive enough that I’ll hang on to this Crucial M4 512GB with Trim enabled and hope for either, 1) Crucial firmware updates to fix problem, or 2) OS X Lion to perhaps address problem. We’ll see, I guess…

  16. MacRoy June 9, 2011 Reply

    Hi Cindori!

    Thanks a lot for TRIM Support Enabler!

    It works on the first time in my Mac Pro 2008.

    Thanks a lot.

    Nice work.


  17. Denis June 9, 2011 Reply

    Is there still sense to recondition disk from time to time >
    The practical answer: definitely yes.
    I tried the ‘method’ from Lifehacker’s article
    ‘Erase free space’ ruined the Intel 320′s performance.
    The ‘recondition’ through 4 iterations improved it well, giving me better response from my Mac even compared to virgin SSD. The startup is 14 t 15 sec.

    I wonder if Cindori could build all-in-one app which could monitor if TRIM is enabled and by the way could perform ‘recondition’ when needed.
    BTW diglloyd asks 40 bucks for his tool. Sad, but by now no alternative.

    Cindori is brilliant kid, I believe he gonna find how to fix all performance issues ;)

  18. Author
    Cindori June 9, 2011 Reply

    I didn’t know who this digilloyd guy was or what tool he had, so I googled a bit and found

    where he states that his “recondition” command basically only does the same thing as Apple Erase Free Space, but just several times:

    “Write over the entire capacity of the SSD. This can be probably be done successfully with Apple’s Disk Utility (“Erase free space”), but the fastest approach is a tool like DiskTester’s recondition command.”

    so I don’t see any reason to pay for that (or implement it into TRIM Support Enabler).

    I will never charge for performance enhancing apps, as in my eyes, you have already payed for that performance when you bought the hardware. The user should not suffer because Apple or manufacturer or whatever does not care about them.

    However if you appreciate the tools you can always drop a buck at the donate button! :)

  19. MacRoy June 23, 2011 Reply

    Hi Cindori!

    I just wanted to mention that after I updated to 10.6.8 my Mac starts on a half (0,5) ticks as opposed to five and a half (5,5) before the upgrade.
    So TRIM works really well on Mac OS 10.6.8!

    Many thanks for a good work.


  20. Movalex July 26, 2011 Reply

    What about OSX Lion support?

  21. Steve Johnson August 13, 2011 Reply

    Does this work (or will it work with Lion)?


  22. tony loke August 16, 2011 Reply

    does not work with Lion… everything went well in terms of running it, but when I rebooted, the TRIM support still showed ‘No’ … the system otherwise booted normally speed wise and seems to run no differently than before (meaning no slower).

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