TRIM Support in Mac SSD

I am about to purchase my first Mac and Im so excited. But before I do I have a question about the SSD. I was not planning on buying the SSD, but instead just going to some 7200RPM HDD but realized the price was only an additional $90, a price you can not just go out and buy one at.

My only concern is the lack of TRIM in Mac OSX. Now, their is speculation (and partial proof) that Lion will have TRIM support, but from what I have researched TRIM is also a hardware variable and not just software. Does anyone know if the new MacBook Pro's SSDs offer TRIM support? Also, will my SSD, by Summer hopefully, be negatively effected by the few months of the lack of TRIM?

Thank you so much,

Ben

Macbook Pro (Early 2011), Mac OS X (10.6.6)

Posted on Feb 27, 2011 4:54 PM

78 replies

Lexiepex

Level 6

14,108 points

Nov 23, 2011 1:05 AM in response to Werner P.

If you have Lion, you must not use Trim Enabler (or may be just the new beta 2), to install Trim on the Mac, because Trim Enebler replaces the kext file with the kext file of Snow Leopard, which is not the same as Lion's.

http://digitaldj.net/2011/07/21/trim-enabler-for-lion/.

and

http://www.groths.org/?p=522

Sudds

Level 1

0 points

Dec 5, 2011 11:18 AM in response to Lexiepex

sudo perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00).{9}(\x00\x51)|$1\x00\x00\x00\ x00\x00\x00\x00\x00\x00$2|sg' /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorag e.kext/Contents/MacOS/IOAHCIBlockStorage

Enable Trim support on any "foregin drive" in Lion safely, run again after a major update. 😉

Lexiepex

Level 6

14,108 points

Dec 5, 2011 11:28 AM in response to Sudds

Right, as I said, do not use Trim Enabler for Lion.

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TRIM Support in Mac SSD