1/9/2024 0 Comments Techtool pro 8.0.1![]() The service guyy I worked with said that the lack of TRIM support wasn't a deal at all if you I ordered one of the Samsung XP941 SSDs and installed it a while ago in a Mac Pro. When done, open Trim Enabler, set it to Off and reboot. Updating Windows boot.ini files as required Updating boot support partitions for the volume as required.Ĭhecking Core Storage Physical Volume partitions Verifying and repairing partition map for “Samsung SSD 845DC EVO 960GB Media”Īdjusting partition map to fit whole disk as requiredĬhecking the EFI system partition’s file systemĬhecking all HFS data partition loader spacesĬhecking multi-linked files.Checking catalog hierarchy. You will get a report like the following (bold is mine): Run it on your SSD - the entire drive, not the named partition. On occasion, with Trim Enabler on, run Repair Disk from Apple Disk Utility. Status, Trim from an external won't work either). Straight TB and/or USB will not work for this. (If running from an external drive, it must be connected via SATA, eSATA or PCIe via Thunderbolt. You can use Trim Enabler as an app with Apple Disk Utility. This is true for any Mac that boots from a factory installed Apple SSD. Safe Boot, NV RAM reset, go ahead – it's not affected. The internal drive is Trimmed automatically by the OS. In the case of your nMP, this is not an issue. Isn't there some app to accomplish the same thing users can run at will? MIDI Life Crisis wrote:Is Trim necessary on a newer model Mac/SSD? Seems like a bit of a liability. Once I figured it out, I decided to break and fix both drives a few times just to see what worked. When I accidentally caused this on my mechanical HD, it took awhile to figure out that Safe Boot with Trim Enabler on was the culprit. This does not affect your data, it only reinstalls the OS and updates your Repair partition. It's the only way if you don't want to mess with Terminal and don't have another drive or partition to boot in. ![]() This takes a lot longer than either of the other methods (an hour on my system). If that won't install or you do not have another bootable drive or partition, you must…ģ) Option-Boot into the Repair partition, select Reinstall OS X. If so, try downloading the latest build of OS X from the App Store (check Purchases or Featured) – it needs to be the latest build if Combo Update doesn't work. However, if you have installed an update after the last Combo Update, your Mac may not let you install this. Select it as your boot drive and restart. Download the latest Combo Update from Apple. If you are comfortable with Terminal commands, this is the fastest way.Ģ) If you have another partition or drive with OS X, Option-Boot into it. I now know that a Safe Boot will cause the same result (guess how I found out?).Īnyway, if that happens to you there are three ways to fix this:ġ) Follow the instructions at Cindori's web site Terminal Commands: This is true for both spinners and SSDs – I can verify this. It is known that in Yosemite, if you reset the NV RAM (PRAM) with Trim Enabler on, your Mac won't boot from that drive until you fix it. Because Trim Enabler turns it off (unblocking TRIM is not approved by Apple, after all), there are issues if you don't remember to disable it before performing certain functions. Kext signing is a new security "feature" in Yosemite. One of those features is a pop-up every time you run an OS update that tells you that the app has been disabled. Trim Enabler.app is shareware – its core function (unblock TRIM) works if you don't pay the $10 but the shareware fee allows all of its features to work. The problem is that Apple blocks TRIM from working unless the OS detects an Apple original equipment (OE) SSD.Īlthough there are command lines that you can run in Terminal to unblock TRIM, there is an app that can do this for you. It manages unused space, deleted files and prolongs the life of SSDs. TRIM is a drive management system that is part of OS X. Since James is making this a sticky, I will update it a bit:
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