Apple has updated OS X El Capitan with a method that allows users to enable TRIM support for third party SSDs. Apple has updated OS X El Capitan with a method that allows users to enable TRIM support for third party SSDs. Jun 13, 2015 A tool called TRIM Enabler previously allowed users to enable support for their own SSDs. How To Enable TRIM in OSX El Capitan on 3rd party SSD's.

Unless your already heavily invested in 3rd party SSD's, I would recommend moving to Apple/Samsung SSD's for PCIe equipped (Mac Pro 1,1-5,1) machines. Imagenomic Portraiture V2.2 ( Adobe Lightroom Plugin ) Key. If using the SATA Buss for conventional 2.5' SSD drives, you can go with drives. They report Apple SSD to the OS and are very solid drives with Trim enabled out of the box. I have one 840 Pro drive booting older version of OS X and TrimEnabler. It's working for also, but I too prefer having Trim support out of the box. Just a matter of choice, not looking for an argument.

Unless your already heavily invested in 3rd party SSD's, I would recommend moving to Apple/Samsung SSD's for PCIe equipped (Mac Pro 1,1-5,1) machines. If using the SATA Buss for conventional 2.5' SSD drives, you can go with drives. They report Apple SSD to the OS and are very solid drives with Trim enabled out of the box.

I have one 840 Pro drive booting older version of OS X and TrimEnabler. It's working for also, but I too prefer having Trim support out of the box. Just a matter of choice, not looking for an argument. This is my opinion only, so please don't drag me through the ringer if you happen to disagree. TRIM is a DESIRABLE and ADVISABLE enhancement to any OS using SSD storage.

It's ENHANCEMENTS may not be realized in all use cases. It doesn't speed up the SSD directly in most cases, it rather prevents degradation caused by certain use cases. It's not required for operation of the SSD but it assures optimal operation under all use cases. If your particular use case doesn't degrade the drive, then you won't realize that benefit. It is not a garbage collection replacement, it is a garbage collection enhancement and it CAN reduce the wear by reducing write amplification.

When an operating system uses TRIM with a solid-state drive, it sends a signal to the SSD every time you delete a file. The SSD knows that the file is deleted and it can erase the file’s data from its flash storage. With flash memory, it’s faster to write to empty memory — to write to full memory, the memory must first be erased and then written to. This unless TRIM is enabled.

TRIM ensures the physical NAND memory locations containing deleted files are erased before you need to write to them. The SSD can then manage its available storage more intelligently. Windows 7 and newer have had built-in support for TRIM, which they enable for all SSDs. Historically, Mac OS X has only enabled TRIM for the solid-state drives Apple provides.

Users who installed their own SSDs had to hunt down third-party tools that enabled TRIM in an unsupported way. In OS X 10.10 Yosemite, Apple introduced “kext signing” — Kernel extension signing. This checks that all the drivers on a Mac are either unaltered or approved by Apple. As TRIM-enabling utilities worked at this low level, this locked them out. It was now necessary to disable the kext signing security mechanism to enable TRIM for these drives, reducing a Mac’s security. Starting with OS X 10.10.4, Apple now provides an official — but unsupported — way of enabling TRIM for any SSD. Is it Safe to Enable TRIM on Your SSD?

Whether this is safe to do depends on the SSD you’re using in your Mac. Apple doesn’t want to be responsible for any issues, which is why OS X hides this functionality behind a command and a scary warning message. Every solid-state drive implements TRIM in a slightly different way, and many SSD manufacturers only truly test for compatibility on Windows. Search company Algolia with certain Samsung SSDs with TRIM on Linux, and similar issues may occur if you enabled TRIM for such drives on a Mac.