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You are most likely suffering from a bad SATA cable. This is a very common issue with any MBP so far, and often presents itself when someone decides to swap out their drive. You can check this by plugging in both the SSD and an external boot medium and then booting up with option key pressed. If you can see the external medium after some time but not the ...


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While third party solutions might be or become available, you might want to use those with caution. Like many low-level integrations, there is a risk that any update from Apple might break the functionality (in a graceful or maybe in a really bad way, i.e. data loss) of that third party product if the developer cannot keep up with the updates of the ...


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Other World Computing announced a product to do this at CES 2015: Transwarp. From their press release: Utilizing any SSD as a removable, flexible cache, Transwarp magically brings the incredible performance of solid state drives to any high-capacity hard drive. Transwarp [...] is slated for release later this year. Key Features: ...


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See here: 500gb take up space on my HD, but don't belong to any visible file or folder In short: not all apps report files moved to trash, but trahs not emptied not all apps report backup files (esp. local snapshots of time machine) not all apps report ther caches and indexes


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I had installed on my MBP mid 2010 a Samsung SSS 830 250GB. With SSD you will solve all the problems caused by HD latency and speed (in my case speed up is around 10x). Of course you also take advantages on speed when you use swap memory with an SSD. It's like when you write and read something from a disk. In summary, if you want a huge speed up go for ...


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You state that you have a Time Capsule, so that would imply that you have current backups. If you have a current, complete backup of the system, the easiest solution here is to boot to recovery mode, open Disk Utility and erase the partition. With a fresh file system in place, exit Disk Utility and proceed to restore from the TC backup. Note: If you have ...


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How about the cables/adaptors being used? Are they all fine? http://forums.macrumors.com/showthread.php?t=1702474 But also, before you spend too much time having trouble with a virtually unusable SSD: Hence they have a 3 years warranty, let Samsung give you a new one.


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You don't even need to move it to another slot. Install your SSD, set it up the way you want, then go to System Preferences -> Startup Disk and choose the SSD. This isn't Windows, and it isn't 1993. You can have as many bootable volumes online as you have disk space for, Macs boot the one you want booted.


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If you have an external USB enclosure, you could do what I did. Put the new SSD in the enclosure. Use Carbon Copy Cloner to clone your internal to the new drive. (Works for everything except Bootcamp partitions, for which you need WinClone) Swap drives. Done. Not free, but solid.


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The short answer is yes, they both support 2.5" 9mm hard drives (be that SSD or traditional). The Retina 2012/Early 2013 13" Macbook Pro (A1425), and the Retina 2012 through to the Mid-2014 15" Macbook Pros (A1398), take the same disks. Hope that helps.


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Personally, I do not believe that you want to boot into recovery mode. Rather, if you're installing a new SSD into your Mac, the most effective path is to boot to a USB that has the OS X Yosemite installer loaded on it. First things first, you will need a USB drive that has greater than 4 GB of space. Fall the instructions on this Apple help article for ...


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This does not answer the question directly but it applies to a very similar problem. I faced the same issue recently when trying to update the Firmware of my Samsung EVO 840. The people at Samsung who wrote the instructions for OS X are either trolls or have no knowledge of the subject. I also tried countless ways of making a bootable USB with the firmware ...


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It seems there is a workaround for this. One can buy an external Thunderbolt SSD, and set up a Fusion Drive. Since Thunderbolt is extremely fast, this is a low cost, low work solution that is very suitable for desktop machines like the iMac. There are a lot of guides online on how to set up the disks. It boils down to Backing up your machine using Time ...


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This RAW value means nothing to you disregard it. Here is on understanding SMART attributes. From there: PLEASE completely ignore the RAW_VALUE number! Only Seagates report the raw value, which yes, does appear to be the number of raw read errors, but should be ignored, completely. All other drives have raw read errors too, but do not report them, ...


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Put it in an external caddy, USB etc, then use something like Carbon Copy Cloner to duplicate it. It will then be bootable when you swap.


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There are three ways of dealing with it: OS X provides good userland access to any USB device, so if one wished to bundle hdparm with a USB storage driver, it'd be possible to use hdparm on USB-connected devices to perform secure erasure. Alternatively, you could write a kernel driver to expose this functionality to the userland. Finally, you can use a ...


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Since Yosemite needs drivers for those and it has to be signed(here is discussion of possible problems with that kind of SSD on Apple discussions) you much better off installing SSD inside the MBP in place of HDD. Here is instruction from iFixit how to do it.


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Finally solved it. After countless tries, here is what worked for me : Format your new disk using macsx extended (journaled) and with GUID boot table. Clone your disk into the other disk (in my case SSD to SSD) using Carbon Copy Cloner. Then go on AppleLogo->System Preferences->Startup Disk and select the disk that you cloned INTO (destination). Press ...


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SSDs degrade over time because the 'cells' they use to store memory can only be written to a certain number of times before they start degrading. As SSDs degrade, they start to become slower and eventually stop working all together (though the drive usually fails before all memory cells become non-functioning). To help slow down the rate at which SSDs ...


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Zeroing means writing zeros (no charge) in all cells. The cells can have 2 states, charged (=1) or not charged (=0). The SSD (aka flash memory) will be set back to original manufacturing state, with all Cells set to zero. However the process will not extend your SSD life time, actually the opposite, it will shorten it if used to often. Over time of usage ...


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@carfish: so you buy a car without ABS braking, because it is safe because before modern cars there was no ABS?? @samric: the french trick is a hack: they just change the name inside the SSD into Apple name. Obviously that will only be a shortlived "solution" because it is illegal. In general: Trim for non-apple SSDs is not wise: there is a (small) chance ...


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further to Funball's comment... you need the UUID of the logical volume group and not the logical volume and then you should see something like Role: Logical Volume Group (LVG) UUID: 58E64811-56C5-4EBC-BE0B-5AF217AA2ABE LVG Name: Fusion LVG Version: 1 LVG Size: ...


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I have a MackBook Pro A1425 and have scoured the internet looking for answers. To date I have not found such an adapter (AAARRRRrrrrrrggggg!!!). However Transcend makes a 64 and 128GB expansion card that goes in the SDXC card slot for additional storage instead of replacing your current hard drive for $37 and $75 on Amazon Transcend JetDrive Lite 330 64GB ...


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After doing some research, I ended up writing a shell script and using launchd to have it execute at boot time. The script I use (/usr/local/bin/empty-tmp.sh) : #!/bin/bash # Delete files (other than directories) that haven't been modified in more than 1 day find /Volumes/MacintosHD/private/tmp -not -type d -ctime +1d -delete # Delete empty directores ...


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Three passes is akin to slamming on your brakes and screeching to a halt in your car. Your tires will be fine but you've just left a few hundred miles of rubber on the road. Chances are you hit the brakes for a good reason though so it was worth it. You won't damage the SSD. Yosemite's 3 pass includes 2 passes of randomized data, which is very much like ...


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I believe Apple's position is a standard erase is good enough on SSD. In the article on secure erasing, they recommend enabling FileVault before you ever introduce any sensitive data to the drive so that you can just throw away the encryption key and not need any passes of erase to be secure. http://support.apple.com/en-us/HT201949 That being said, in ...


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Well if it is not the state of you disk it could easily be just a different SSD vendor. Those figures you have provided are from testing SanDisk 128GB equipped ones. Apple has many different vendors for same part and some SSD chipsets are faster at sequential than other. It might just be the case. Here is an article on similar discrepancy over 2013 and 2014 ...


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Your Mac already has a disk read/write speeds report in the Activity Monitor. Since it is a dynamic value you need to start a app that reads/writes to the disk, or use Terminal for that: To test write speed: time dd if=/dev/zero bs=1024k of=tstfile count=1024 In the output, you should look for something that looks like "bytes transferred in 16.546732 ...


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No there is nothing wrong with the disk: - you can have another file size than what is used in the "specs" - you can have a rather full disk and the GarbageCollection was not fully done. Please let your computer sleep overnight, without any software running, this will help your GarbageCollection; make sure you have enough free disk space for the Garbage ...


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Seems like OWC Envoy Pro is what you are looking for. Though it is kinda pricey avout 140$ now. Compatibility table is like this so yours is included.


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Depending on the SSD manufacturer, I've read that restarting your machine and holding down the option key, which will bring you to the start-up disk chooser and then letting it sit in that state for a few hours without choosing a boot disk will allow garbage collection to commence, I believe I read that on the MacObserver's MacGeekGab or maybe it was the ...


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According to https://discussions.apple.com/thread/5446239?start=15, "because 2013 macbook SSD is PCI-e X4 version, it can't be read in SATA or USB port .It only can be read in PCI-e X4 adapter card". They have a link to a PCI-e card product that has a slot for the SSD to be inserted internally. It seems there aren't any USB interface options.


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It is true that disabling the kext signing is global, but before Yosemite, it did not exist at all, so compared to a pre-10.10 setup you do not lose security. The only thing you need to do is make sure every driver you install can be trusted (and how often does one install drivers). I would simply use TRIM enabler, it has not created problems for me. For ...


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Did you notice that the interesting bits in the discussion seem to point to Disk Repair having performed a TRIM because Trim Enabler was installed? User jimsander says: My guess is it's a result of the 3rd party TRIM enabler - just did Disk Utility --> Repair on my machine (MacBook 2008 w/ Lion + Crucial SSD) and it didn't say it did a TRIM. It would ...


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Make sure your SSD is working by connecting it to different computer through SATA or SATA to USB adapter. Make sure your PATA adapter is working by connecting it to different computer. Also try different drive with it. Try to buy another adapter with another chip, prefer unidirectional one. There a whole lot of incompatibilities with them This one for ...


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Alternative approach would be to leave as much space on SSD free as possible for GC to work well. I did this i.e. enabled TRIM on clients computer just when Yosemite was released and I didn't fully understand consequences of it. Now I only hope she will install update with new AppleAHCIBlockStorage before she will try cmd+optn+p+r for some reason. Now I ...


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Is everything plugged in securely? Double/triple check it. Does the drive + adapter work in another computer? I'd recommend troubleshooting with another Mac AND a Windows machine if you can. If the drive shows up in Windows but not your Mac, then I'd expect it's a formatting issue. I don't know of any limitation that would suggest that the parts are ...


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I have installed quite a share of SSDs in older Macs to give them second breath so to say and can answer your questions from my perspective. What would be the best SSD to get for my Mac? Just buy cheapest big manufacturer brand. I have been installing Intel 320 (40GB), Micron M4(64GB), Kingston V300(60&120GB), Toshiba OEM(Marvel chip I believe, ...


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re 1: hard to say - if you can spare the Money you should go for the 850 bc. of a (probably) better Garbage Collection (see #3), else go for the 840. re 2: The best tutorial for replacing the optical drive with a harddrive (or SSD) can be found at iFixit.com, f.e. this one. You should search for the Tutorial for your model, the link i posted is probably not ...


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I assume you mean is there a difference between buying over the web and in-store. Buying over the web allows you to configure your system to suit your needs, I did this when buying a Retina display Mac Book Pro 13". Apart from that there are no differences: you can still go to the store for service etc. Hope this helps.


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Nope, it is not different. On apple store you can customize: In you case it will come up as Configure your 15-inch MacBook Pro with Retina display 2.5GHz Quad-core Intel Core i7, Turbo Boost up to 3.7GHz 16GB 1600MHz DDR3L SDRAM 512GB PCIe-based Flash Storage Intel Iris Pro Graphics and NVIDIA GeForce GT 750M with 2GB of GDDR5 memory Backlit Keyboard ...



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