I had to keep a sheet of paper with terminal commands in case I forgot about kext signing.
"I am using Cindori's Disk Sensei (upgrade from TRIM Enabler) since OS X 10.10.4 came out.
Thanks! (Also if possible, send a follow-up after months of use to see if there's been any issues over time.)
#TRIM ENABLER 840 PRO MAC#
Please include SSD, Mac Model and OS X version used. If you've used Chameleon SSD Optimizer, TRIM Enabler, or manually enabled TRIM in OS X, let me know your experience. I never wanted the automatic TM backups personally but I know some do.) (I've always had TM off in the prefs but with the TM icon in the Menu bar and then using its "Backup Now" option when I want a TM backup to run. Regardless, some highly recommend doing the repair with trim enabled.)īTW: Since I've never enabled Time Machine I didn't need to disable local TM backups (a feature some utils offer to do) but IIRC here's the terminal command for that (w/o quotes) "sudo tmutil disablelocalbackup". (You should then see a Trimming message in Disk Utility.) This SSD has almost no use and the built-in GC may already have taken care of that. (One thing I didn't do (yet at least) is boot from another drive/volume that also has TRIM enabled (even if not an SSD itself) and then "Repair" the boot SSD drive. I verified in System Info (About this Mac more info/system report under SATA) that Trim support was reported as "yes". Then enter the following:)Īnd then reboot of course. > sudo perl -pi -e 's|(^\x00\x54)|$1\x00\x00\x00\x00\x00\x00\x00\x00\x00$2|sg' /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage In case something goes wrong, always have a current backup first and I also suggest everyone have a verified bootable clone of your boot volume.)
#TRIM ENABLER 840 PRO MODS#
(All 'unofficial' mods like this are 'use at your own risk' (no guarantees) of course. You've probably seen these commands before but here's a repeat (cut and pasted from a text file) for those that are comfortable with the Terminal app. Rather than use 3rd party utilities, I manually enabled Trim on my Mac Mini's Intel 520 SSD running OS X 10.9.3. ( FYI: OS X 10.10.4 has a 'Trimforce' option for non-apple SSDs. Manually Enabling TRIM in OS X from terminal/command line: My first thought was creating a small sleepimage file and write protecting it, but curious if anyone has a better suggestion. Checking /private/var/vm/ showed the sleepimage file was back (w/new timestamp). (System/drives were set to never sleep, only the LCD display but I tested again with display set to never sleep - deleted the file, let the mini sit idle for 5 minutes or so (no wifi or internet connection active, only the terminal open). In fact, I noticed it recreated again after only several minutes of idle time. Deleting it (via sudo, file located in /private/var/vm/, or /var/vm/), ls check shows file is gone, verifying (via pmset) that hibernate is disabled yet the sleepimage file reappeared on the next boot/restart - even if the mac had not been in sleep at all. Regardless of hibernate mode being disabled and deleting the sleepimage file, it will later reappear. Just noticed this recently on a 2012 Mini w/OS X Mtn Lion, but hadn't checked earlier for the sleepimage file 'reappearing' after deleting it. I enabled Trim manually on my Intel 520 SSD in OS X 10.9.3.) (Original request asked about Sandforce SSD use, but any are welcome. manually ( July 2009 archives) and (later) linked to an earlier Trim Enabler (only) utility at, but Chameleon also includes other features we used to do via terminal.) There's also a report here from an Intel 520 (SF) owner using the earlier () Trim-Enabler.
(Older pages here years ago had terminal commands to enable Trim ( March 2011 archives), disable hibernate mode, delete sleepimage file, disable SMS, etc. This page is a catchall of reader feedback from a request for feedback (esp for Sandforce SSD users) in the May 3rd news page on Chameleon SSD Optimizer Utility to enable TRIM on non-Apple ID SSDs and more. 2015 ( Notes on OS X 10.10.4/Disk Sensei/Trimforce) (Or enable OS X TRIM via command line without 3rd party apps) Mac user reports on Chameleon SSD Optimizer, OS X Trim Enabler, & Disk Sensei Recent Updates | Mac Upgrades/Repairs | Storage | Video | Audio/HT | Apps/OS/Network | Home Enabling SSD TRIM in OS X using, Trimforce, Chameleon SSD Optimizer, OS X Trim Enabler, Disk Sensi or Manually
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