As for power users, I recommend just buying a new Mac. This been said, I guess Apple would rather prefer to allow their Macs to support 3rd parties SSDs and have Macs secured, than have a lot of hacked Macs and all the internet taking about it.Īlthough, old Macs are getting obsolete due to the absence of current technologies, most of the regular users still can extract a bit more juice of their Macs, so they will find this tool very useful. I believe that Apple had made this decision because after the release of OS X Yosemite, which includes the new kext signing feature, Mac users were disabling this security feature, which when turned off, allows to execute arbitrary code in modified kext extension natively, WHICH was an huge security flaw. This is a huge win for the Mac users community because the people had ask for this a while ago. Yesterday, Apple had released OS X 10.10.4, including on it the new remarkable trimforce tool which allow native TRIM support for 3rd parties SSDs. Sudo kextcache -m /System/Library/Caches//Startup/Extensions.mkext /System/Library/Extensions To do that, click on the Apple logo located on the upper left side of the screen. The app has now reached version 2.0 and is finally fully compatible with OS X Lion. First of all, make sure that TRIM support is not already enabled for your SSD after the upgrade to OS X 10.10.4. # rebuild kext cache manually (could take a while) To make enabling TRIM more user friendly, Oskar Groth (also known as Cindori) developed an app called TRIM Enabler. # looks for "Apple" string in HD kext, changes it to a wildcard match for anything # Important: Add "kext-dev-mode=1" as Kernel Arguments or the computer won't boot. Sudo cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage.original
OS X TRIM ENABLER MAC OS X
Dear Apple Support Communities, yesterday I upgraded my MacBook Pro (13'', early 2011, 2,3GHz, 8GB RAM, Mac OS X 10.9.3) with a Samsung 840 Pro Series 256GB SSD. # Yosemite: for recovering from stop sign on boot screen, please see TRIM isn’t available in Mac OS X be default, but you can enable TRIM support in Snow Leopard with the handy TRIM Support Enabler.
# Looks for "Apple" string in HD kext, changes it to a wildcard match for anything
OS X TRIM ENABLER UPDATE
# Update July 2014: no longer offline, see # Original version by Grant Parnell is offline () # just run "sudo trimforce enable" to activate the trim support from now on!
# UPDATE for 10.10.4+: please consider this patch obsolete, as apple provides a tool called "trimforce" to enable trim support for 3rd party SSDs
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