Currently Being ModeratedNov 1, 2013 10:59 AM (in response to Omer Bugra)
Yes you need to install and run TRIM Enabler after your OS X is installed or reverse cloned onto the GUID/OSX extended Journaled formatted SSD from a external boot clone drive of the previous internal drive.
Also you need to run it after some OS X updates and of course upgrades, you'll notice the immediate performance drop if you don't.
It's available over at MacUpdate.com, you'll have to right or control/alt key click to "Open" it to bypass OS X Gatekeeper.
Read these user tips, you can clone your present internal drive to the new SSD using a SATA to USB adapter/Carbon Copy Cloner (not Superduper) and then reboot and hold option/alt key down on a wired keyboard to boot from it and test before making hardware switch.
Of your going the fresh install or + TimeMachine restore route, then also read this
Currently Being ModeratedNov 5, 2013 8:07 PM (in response to ds store)
Thanks for your answer.
But I would also like to learn what you (and other users) think about the built in garbage collection firmware of SSDs. People are suggesting that Apple has its own method of garbage collection called "trim" but the SSDs, especially Samsung 840 series is recommended by some users that they could handle garbage data without causing performance drop using their internal algorithms. I read that trim is a way of garbage data handling which also optimizes SSD performance with the needs of MAC OS X but built in algorithms could give good performance without degradation and data security..
Which should I believe?
Any more experiences from different users? (Especially for amsung Evo 840 250 GB SSD without trim enabled.)
Currently Being ModeratedDec 10, 2013 6:15 PM (in response to Omer Bugra)
I'm no expert, but I've owned an 840 pro for almost a year (and done nothing to it except use it). On a lark I ran Black Magic and noticed dismal write performance (like less than 100 mbs), not that I noticed it that much in my day to day work. I did some reading and downloaded and ran TRIM Enabler from Groths.org. One word: WOW! It works. 325 write; 500+ read.
Currently Being ModeratedDec 10, 2013 6:31 PM (in response to rfc143)
I performed the upgrading to SSD after writing that question and installed the Trim Enabler from Groths.org just after the upgrade. It has been more than a month and I did not feel any performance degradation. The MBP boots in 4 to 5 seconds to password screen and programs fire up like lightning. Whatever Trim Enabler is doing, it is doing it fine even without the program working at the background. As I heard from a friend, it just creates a kernel file which is run occasionally to clean the deleted file locations on the SSD and it is working great. Therefore it does not mess with the system files. Until Apple will begin to support all Apple and non-Apple SSDs, Trim Enabler will be able to serve the function of SSD cleaning, I suppose.
Currently Being ModeratedDec 10, 2013 6:32 PM (in response to Omer Bugra)
I purchased an SSD from OWC (macsales.com) and their site states specifically that one should not and need not use TRIM enabler, so I have not. Have had the SSD for about a year without any problems.
Currently Being ModeratedDec 10, 2013 6:41 PM (in response to babowa)
Did you perform any speed test on the disk recently. I have read the same things on the web before buying an SSD; there were some models with garbage collection. But some people asserted that trimming process and garbage collection were not the same. But even though the processes are not the same, they could both be serving the function of speeding the SSD up by managing the deleted files but I would like to learn the speed test results you may provide.
By the way, did you feel any improvement in the battery life? I have installed a 256 GB SanDisk Extreme SSD and the battery life extended by approximately half an hour.
Currently Being ModeratedDec 10, 2013 6:49 PM (in response to babowa)
In contrast, my son has had two different OWC SSDs in his laptop, without TRIM, and both have choked on deleted data and DIED.Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedDec 10, 2013 6:51 PM (in response to Omer Bugra)
there were some models with garbage collection.
ALL models have built-in Garbage collection -- it won't work without it.
read this article about TRIM:Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedDec 10, 2013 7:51 PM (in response to Omer Bugra)
This is the SSD I purchased:
So far, there has been no degradation that I can tell and no, I have not done a speed test. And no, I would not be able to tell if there has been any battery improvement as I usually only run it on battery about 25 - 30% of the time (the rest of the time it is plugged in).
interesting - which SSD models did he have?
Currently Being ModeratedDec 10, 2013 8:19 PM (in response to babowa)
Same as you -- 240Gb sizeMac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedDec 10, 2013 8:29 PM (in response to Grant Bennet-Alder)
Thanks; I'll file that away until/if I have a problem. As long as I'm covered by the warranty, I'm ok.
Currently Being ModeratedDec 10, 2013 8:37 PM (in response to babowa)
They replaced them under warranty.
But it has made me an insufferable advocate of TRIM. Even for those drives.Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedDec 10, 2013 8:54 PM (in response to Grant Bennet-Alder)
I wonder if I should drop a note to OWC and ask their opinion on the TRIM Enabler; the one (and only) odd thing so far has been a necessary firmware update which I cannot use - it returns an error message which they could not even figure out and told me to simply ignore it until I had a problem.
Currently Being ModeratedDec 10, 2013 9:02 PM (in response to babowa)
Their position has always been that it is unnecessary.
OWC has been a seller of Apple modifications (such as Processor upgrades) and add-ons for a long time. They even backed XPostFacto, a very interesting life-booster for running earlier versions of Mac OS X on older PowerPC Macs. They were unable to charge money for it, because it used Apple software in the process. They tried to monetize it by charging for their support forum for XPostFacto instead.
They have been treading very close to the line of using Apple copyrighted software for making money for themselves. I expect Apple contacts them and "reminds" them not to cross that line on a regular basis.
The current batch of third-party TRIM enablers patch the Apple Driver to recognize non-Apple drives as well as the already-supported Apple drives. In my opinion, it would be near impossible for OWC to recommend a solution like TRIM Enabler (which patches Apple software).
In my opinion, OWC suggests their SSD drives "do not require" TRIM Enabler because they feel OWC as a company "do not require" Apple to sue them into bankruptcy.Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers