TRIM Enabler Increases Solid State Drive Performance In OS X

TRIM is a command that lets you take advantage of your solid state drive (SSD), it isn't available in OS X by default. TRIM Enabler patches Snow Leopard systems to take advantage of it and get better performance out of their SSDs.

TRIM support is coming in OS 10.7 Lion, but if you're running Snow Leopard right now you can enable it with TRIM Enabler, which performs a little hack on your system that lets you take advantage of TRIM. Before you download this, you'll want to make sure of two things:

  • Make sure your drive supports TRIM in the first place. You can check this by going to System Profiler and looking under Serial-ATA. Alternatively, you can Google your drive's model number and see if it supports TRIM. If not, you don't want to use this patch.
  • Make sure you've updated to 10.6.7. This won't work on 10.6.6 or before.

Once you've confirmed both of those, just open up TRIM Enabler and hit the Patch button.

As always, when you're messing with system files, I recommend making a full backup beforehand. If, after restarting, you experience any errors, booting into safe mode should help you fix the problem. Just hold down the Shift button as you boot your computer, and from there you can restore your system from a backup. For more information on the hack that's taking place, check out this article.

I haven't been able to test this one myself, since my SSD doesn't actually support TRIM. So if you try this one out, let us know how it goes for you in the comments.

TRIM Enabler [ via Rafeed Chaudhury]


    Not sure the Trim support reporting in System Profiler is accurate.

    According to OCZ my Vertex 2 supports Trim but the System Profiler reports that it does not.

      Yeah I have the OCZ-VERTEX2 the System Profiler says TRIM = No
      But the manufacturers site clearly states that the drive supports TRIM. I would suggest that in the system profiler the No indicates that TRIM support is not switched on.

        Could be a firmware thing...

    Seems to work for me. I think my SSD is going a little bit faster now after a re-boot. I'm rocking a "KINGSTON SNV425S2128GB" in a Late 2007 MacBook

    I've just used the hack on a Corsair CSSD-F120GB2 120g drive in both a MacBook Pro 17 and a 15, running 10.6.7. In both cases on installation of the drives the trim support in profiler says no, but after applying the hack it says yes on both machines and they are definitely running signifcantly faster after the hack was applied. the 17 has been running for 2 months now, the 15 for a month with no problems. thanks for the hack guys.

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