Performances are now better, but I still need time to see if any corruption happens later. The first reboot after enabling Trim is definitely much slower, but it resumes the normal speed after more reboots. Moreover, smartmontools shows no error for them. I decided to take risk again as it should be fine to enable Trim to all of those three SSDs, and Micron even published a page about enabling Trim on macOS, indicating it should be truly fine for MX500 at least. Because of the slowing down speed of those SSDs recently, I recalled that their Trim function was still disabled.

I had forgot about Trim for almost one year and I was also afraid of that corruption happening again.

I also installed an SU750 into my aftermarket MacBook Pro (2012 non-retina 13-inch). The current macOS system drive of my primary (personal) machine has become a Crucial MX500 500GB, and that Lite-On MU3 ROCK 120GB is now the macOS system drive of my secondary (office) machine. I was building a new Hackintosh PC at the moment so I may have missed some notifications here.

Building a CustoMac Hackintosh: Buyer's GuideĬlick to expand.I’m sorry for this late response.

Enable trim mac os mojave