Here it is, another question regarding modern SSDs and TRIM. I've read several threads in this forum regarding this topic, as well as other forums and Anandtech's reviews, but I'm still confused. Opinions and facts seem to differ. I've recently bought and installed an Intel 520 Series 120GB in my MacBook Pro 7,1 (13'', Mid-2010). It was up and running in no time and works flawlessly and amazingly fast, btw. The question is whether I should enable TRIM or not. Some opinions say yes, It's useful to manage deleted files and help the SSD not to lose speed. Some others say no, most modern SSDs have their own garbage collection which is perfectly capable of doing that by itself. So it's a draw. Maybe it doesn't make a big difference, but I seek for you advice as I am now clueless. Thank you and greetings form Spain . EDIT.: Btw, I use Lion (10.7.3).