Based on the info from the official website, you can enable TRIM on the following version of OSX:
- Snow Leopard 10.6.8: No issues, use Trim Enabler 2.2
- Lion 10.7.0 – 10.7.5: No issues, use Trim Enabler 3
- Mountain Lion 10.8.0 – 10.8.5: No issues, use Trim Enabler 3
- Mavericks 10.9.0 – 10.9.5: No issues, use Disk Sensei
- Yosemite 10.10.0 – 10.10.2: Not supported (text signing issues)
- Yosemite 10.10.3-10.10.5: Enable Trim safely using Disk Sensei
- El Capitan 10.11.0: Enable Trim safely using Disk Sensei
As you can see, there is no TRIM support for Mac OS X 10.5.8. To find additional information, visit the official website: https://www.cindori.org/documentation/
