I have an Intel 320 Series 120 GB solid state drive installed in the optical drive bay of my 2012 MacBook Pro 13". I'm not sure whether to use TRIM Enabler to enable TRIM.
I did enable it before on my 2011 MacBook Pro, but I not sure whether I really needed to. I never had problems with it enabled.
I also doesn’t want to tinker with this, when I’m not entirely sure. Maybe I should use TRIM, but enable it with something other than TRIM Enabler. I don’t know.
I know what TRIM does. And if you buy a Mac with a SSD from Apple, it is enabled by default.
Best Answer
TRIM and Garbage Collection (GC) are not the same, and are both necessary to maintain performance after the drive has been used for a while. GC only takes place in the background when idle, or when the OS needs to write to a previously used block.
TRIM proactively zeros unused areas in the background. This is why you see a slight performance hit, but on an SSD this is negligible and is a lot faster than waiting for GC to work on demand after you've been using the SSD for a while.
Using the TRIM enabler app is not advised, but you can enable it via the terminal by following these steps.
Including the Steps below (as there seems to be a certificate issue with that particular link) :