Good advice, I should have thought of it but I'm so new to SSDs and stuff it hadn't occurred to me 😱
It seems faster already, but I'll wait until I've installed everything and brought my system up to scratch.
Thanks for the reminder!
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
SSD Buying Guide
- Thread starter Hellhammer
- Start date
- Sort by reaction score
- Status
Good advice, I should have thought of it but I'm so new to SSDs and stuff it hadn't occurred to me 😱
It seems faster already, but I'll wait until I've installed everything and brought my system up to scratch.
Thanks for the reminder!
kmpoboy2
macrumors 6502
Cindori Trim Enabler and Yosemite kext signing issue
So I updated to Yosemite and went to Cindori website to download trim enabler and I came across to this:
http://www.cindori.org/trim-enabler-and-yosemite/
Basically, what it says is that Apple added a new security requirement called kext signing and in order for trim enabler to work it must be disable which, Trim Enabler will do it for you.
The problem is that kext signing will be disable system wide so you must be careful of what system drivers you install on your Mac. Only from trusted sources.
Also, there's a recommendation to disable trim before doing hardware maintenance or PRAM reset on your Mac.
Give it a read before installing the software.
So I updated to Yosemite and went to Cindori website to download trim enabler and I came across to this:
http://www.cindori.org/trim-enabler-and-yosemite/
Basically, what it says is that Apple added a new security requirement called kext signing and in order for trim enabler to work it must be disable which, Trim Enabler will do it for you.
The problem is that kext signing will be disable system wide so you must be careful of what system drivers you install on your Mac. Only from trusted sources.
Also, there's a recommendation to disable trim before doing hardware maintenance or PRAM reset on your Mac.
Give it a read before installing the software.
benji888
macrumors 68000
I HIGHLY recommend OWC 3G series in this case (I have one). OWC has the best Mac support online outside of Apple, USA customer service, tech support, warranty, online video upgrade guides, all of it. (you call them, you get them, not an outsourced 3rd world country.) (TRIM is built into drive.) http://eshop.macsales.com/shop/internal_storage/SSD/Mercury_Electra_3G_Solid_State
I have had the best experience: Mac-compatible quality products, warranty, customer service, and tech support w/OWC.
NOTE for 2011 MBP upgrades: if you upgrade your optical bay, keep in mind, some models are NOT compatible with 6G/SATA III drives, you must put a 3G/SATA II drive in a data doubler/dual drive tray. (even if it's backward compatible w/3G/SATA II, a 6G/SATA III drive will not likely work.) So, you can put a 6G/SATA III SSD in your HDD bay, but, only 3G/SATA II in optical bay.
Yeah I ran trim without the Cindori kext patch and FUBAR'd my system. After I got it back up and running the patch worked fine and trim is now enabled. I'll just disable TRIM and the patch before any OSX software updates or PRAM reset.
Sorry for my ignorance, but what patch are you referring to? To my knowledge, all cindori's trim enabler does is disable kext signing, is that what you're referring to?
johnnnw
macrumors 65816
I'm having problems with my SSD and I think it's related to this whole kext thing.
What did you do to re-enable the thing the Trim Enabler disables?
My HDD works fine but I can't format my SSD or install OS X or anything on it. Just gets a bunch of errors and won't boot etc.
I thought it was the ssd but samsung replaced it and still happening.
To my knowledge you just turn off trim with the trim enabler software and it gives you the option to set the kext back to factory settings.
I just bought an SSD for my MBP, last week... it arrived this week, from OWC, the 480GB model, and I thought I had a 2013 model... as it turns out, I have the late 2013 model... didn't realize there was a difference. 🙁
Anyone be interested in the SSD?
Anyone be interested in the SSD?
davidlv
macrumors 68020
Try notifying OWC, tell them exactly what your misconception was, and ask for a return for credit. They have updates available I believe for your laptop.
Check that, I may be mistaken.
😀
Unfortunately, I bought it through eBay... and I just checked and they do not have any current SSD drives for my laptop. 🙁
Sad day.
Synchro3
macrumors 68000
This thread is really useful, thanks - I bought a Samsung 840 EVO and am ready to install it in a 13" MacBook Pro.
I'm upgrading from Snow Leopard and am planning to install the new drive and perform a clean install of OS X.
Reading up on the Trim posts and threads in Yosemite... is it worth installing Mavericks for now instead?
I'm upgrading from Snow Leopard and am planning to install the new drive and perform a clean install of OS X.
Reading up on the Trim posts and threads in Yosemite... is it worth installing Mavericks for now instead?
\-V-/
Suspended
Good SSDS choice.
The problem with TRIM started with 10.9.5, I believe. You don't necessarily need TRIM, but in order to use TRIM on third party SSDs, it requires you to fudge with kexts, which can cause your Mac to stop booting.
m4v3r1ck
macrumors 68030
I'm running OSX 10.9.5 on 840 EVO and Trim Enabler from Cindori. Never encountered any problem while updating 10.9.0 to 10.9.5 with each update in between. Problems started with OSX 10.10 DP. Haven't updated to the OSX 10.10 public release and the OSX 10.10.1 update. Will do so next week and I'll report back to you!
Please share your details about failing Trim in 10.9.5?
Thanks in advance! Cheers
Last edited:
S.B.G
Moderator emeritus
I didn't have any TRIM issues with 10.9.5. Most of the problems I heard of were with 10.10.
SoonerChris
macrumors member
So what is the consensus on upgrading to SSD with the kext text/TRIM issues with 10.10? I really need to upgrade from spinning disks to SSD but the issues have me a little worried.
Should I just not worry about it, upgrade, and use Cindori's Trim Enabler to turn off TRIM?
IF you were buying today would you go with the Samsung EVO or the Crucial MX in 512GB?
Should I just not worry about it, upgrade, and use Cindori's Trim Enabler to turn off TRIM?
IF you were buying today would you go with the Samsung EVO or the Crucial MX in 512GB?
I think there is broad agreement that TRIM is beneficial and a good thing to enable. But I don't think there is a consensus on the issue of whether that benefit justifies disabling a Yosemite security feature. At this point I think all you can is read over the pros and cons in this thread and decide for yourself.
https://forums.macrumors.com/threads/1807889/
They are pretty close in performance. I would just get whichever you can find cheapest.
This was the main issue for me having read the threads and the Cindori FAQ:
I installed the Samsung 840 Evo 250GB today and went with Mavericks then installed Trim Enabler. It's unbelievably quick compared to Snow Leopard and the old HDD.
Another issue for me is that availability/uptime is more important than the new Yosemite features. Although there are steps to get going if the grey screen occurs - i.e. the kext-signing setting is re-activated - I'd rather not go through that (it'll happen when I need the machine the most 😉).
S.B.G
Moderator emeritus
You may start experiencing slow downs and other odd things happening that you otherwise couldn't explain. I have TRIM turned on with Yosemite on two of my Mac's and I don't seem to be having any troubles.
ecschwarz
macrumors 65816
I think you'll be fine - I've been running the same drive with it turned off since the public betas and haven't had any issues. I know it's not as ideal as having TRIM enabled, but for everyday use with about 90GB free, I haven't noticed speed problems. If not, I'll try the method of re-enabling TRIM and then fsck -fy.
iDuel
macrumors 6502a
Thanks! I'm going to keep TRIM off for now unless the SSD becomes noticeably slow.
- Status