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I have the same model of Macbook which was showing the same issues. After replacing the Harddrive with an SSD I still had the same issue. It ended up being the SATA cable connecting the hard drive to the logic board. Over some time the insulation had started to wear off and the cable was occasionally shorting against the base of the case causing IO errors. ...


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I followed Klanomath's reply above to successfully recover my Macintosh HD. I had tried to resize it from ubuntu (Bootcamp) and completely stopped seeing my Macintosh HD partition. I had tried several posts and tools to write and rewrite partition tables without success and was about to give up. I followed the steps #5 to #8 from the post. I did # 5 and ...


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You can try entering in Single User Mode and do an fsck on the hard drive. To enter single user mode, turn on your computer and immediately after press the Command s. This will load you to a terminal looking screen. Let it run its pre-checks. After it is done there should be two commands to run: a command to mount the drive a command to run fsck on ...


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I have the same MacBook Pro. I did the following: I bought a SSD and replaced the hard drive disk. I installed OS X on the SSD. (240 GB - $100). I inserted 8 GB of RAM (replace the two 2 GB RAM) ( 2 x 4 GB - $50). Then I replaced the SuperDrive with .... the old HDD. You need to buy an adapter. (Adapter on Amazon - $30). Yes it's expensive, but it takes ...


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I don't believe anyone can give a definitive answer. I would guess the Apple Tech Support folks would have indicated something by this time. I personnaly have never heard of this level of repeated failures for a single person and/or device. But I have seen low levels of failures of Apple devices at a much lower, single instance level many times over the ...


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First, Some Diagnostics While SSD's will give you a boost in speed simply replacing one with the hopes it solves a problem could get expensive. Let's verify that the problem is the drive in the first place and not something else. If you can log into your system, open Terminal and issue the command diskutil list You will get a listing of all your drives ...


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I don't see why one would have anything to do with the other. Drives are not being constantly read from and written to unless something needs to do that. You can play a video game and once it's in RAM it'll stop reading the hard drive in many cases. A large movie on the other hand will constantly read from the hard drive. But even still, Time Machine and ...


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don't tell me to buy an HDD Buy a new HDD. Here's why. First, a bit of history. ALL disk drives have bad sectors. Way back in the 1980s drives were simple mechanical devices that came with a bad sector list. Today, the bad sectors are mapped in the drive's firmware. The drive has slightly more storage than advertized and the controller just replaces ...


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The slot is proprietary, and it is not an M.2 or mSATA slot. I have seen no adapters on the market that will allow you to connect an ordinary SATA drive to the proprietary connector. Such an adapter would need to include an amount of electronics, as it is a completely different interface - i.e. it is not just a passive adapter. The only other supplier of ...


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I have an iMac 27 Late 2012 and I upgraded my SSD. The fusion drive is a misnomer - it's actually two drives. There is an PCIe SSD, probably about 128GB that attached to the logic board, then there's a 3.5" 1TB HDD. Technically, you could upgrade the PCIe blade SSD drive, but after some research, I found it wasn't really economical. All you need is a ...


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The secure erase feature indeed seems to be gone (or it's a bug). Open Terminal and enter diskutil list to see a list of your attached drives. In the following example, notice a pair of drives are identified: /dev/disk0 (internal) and /dev/disk2 (external) - disk1 is related with the Apple CoreStorage partition disk0s2. your_prompt_here% diskutil list ...


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Time Machine and OS X is tuned to throttle the IO and possibly the CPU usage of the backup task. You can do a few things to modify that behavior - but from the speed benchmark and my experience - a 12 to 48 hour initial backup is not abnormal or indicative of slow backups once you have a few intervals backed up. You could log out and minimize other apps / ...


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The speed you see there is not unusual. I have seen various USB3 external harddrives vary from about 60 MB/s to about 120 MB/s. These speeds can be expected from ordinary hard drives - you'll to buy an SSD to get much higher speeds. However please keep in mind that these speeds are the bulk transfer speed. I.e. if you transfer only one large file without ...


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You have to edit the partition table and modify the type of disk1s2 (and correct the type of disk1s3) to get your main data partition back and make Boot OS X invisible: Log-in as admin Open Terminal and enter sudo gpt -r show /dev/disk1 to get an overview Unmount disk1: diskutil umountDisk /dev/disk1 Remove partition 2 and 3: sudo gpt remove -i 3 ...


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Could be anything. App updates, new apps, a virus that downloads stuff for you, automatically installed software, or a host of other things. If you did have an application on your Mac like Dropbox or Google Drive, (either of which could automatically be downloading stuff onto your computer) it could be that, but you do not. Here's what you should do: ...


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I did the trick by Trent Fitzpatrick's recommendation. Everything works. Speed doesn't changed. Probably it's because I've just made a Fusion Drive and there need some time, probably it doesn't affect at all. But Write 120mb/s and Read 380 mb/s really slow for Fusion Drive I guess. I'll wait some time and if speed doesn't will change I guess I'll replace ...


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When using the Winclone product to install Windows on a external USB drive, it is extremely important that you first read all the instructions provided by Winclone. Winclone provides the Web page: Running Windows from an External Drive. This page provides links to two videos. The first link is the same as given in your question. The second link provides the ...


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In general, I would think that a slow Time Machine disk is not going to really affect the performance of your machine. If you are using the 5400 RPM disk only for Time Machine, then the performance of that disk is only going to affect the speed that backups are made and recovered for the most part. It is true that when TM is running it is scanning your hard ...


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I have a Mac Pro 2008 running El Capitan and also experienced slow downs with Time Machine. The slow downs had nothing to do with hard drive speed. I had never used Time Machine until I downgraded from Snow Leopard to El Capitan. I made a mistake and let Time Machine try to back up all connected drives. (I have four internal hard drives, and two external ...


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The first thing you want to do is reference the drive specs to see what it is rated in terms of data transfer speed. According to C/Net, it has an external data transfer rate of 300MBs (it's a SATA drive, so this is expected) So, if you are getting a drive speed rating of 50MB/s, things are definitely slow. 5400 RPM is also quite slow to begin with. ...


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You will diagnose that you have a serious disk problem by looking at /var/log/system.log and more specifically with: grep disk /var/log/system.log These error messages will clearly show if your disk is producing I/O error on the same location, which will indicate a disk problem, or on multiple locations which will indicate a bus or logic problem. I ...


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Yes, you could just copy it back, but it may not be bootable. That can be fixed by installing OS X over the top of your files. It should preserve what is there and make it bootable.


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As a proof of concept, I formatted a USB Thumb-drive using a GUID Partition Map and formatted it Mac OS Extended (Journaled) naming it "Encrypted". Then in Finder, I selected the disk named "Encrypted" and control-clicked selecting Encrypt "Encrypted"..., while setting its password to "password". When it was done encrypting, using Terminal, I ascertained ...


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I had previously gotten the Error 43 on my Mac. So I searched the Internet and found this article: How to Fix Error 43 Mac. To fix, what you need to do is basically two steps Reset the PRAM. From a powered off state, hold ⌘ Cmd ⌥ Option P R until you hear the startup chimes 3 times, then release and allow your system to boot normally. (Optional) ...


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I have owned a MacBook Pro Retina since August 2012 and it gets modest use, with mainly web browsing and online video streaming as the main uses. As the DriveDX report shows, the SSD is rated at 90% after 3.5 years of use. My MACs seem to last forever, with an iMac 27" from 2009 still running fine - though I maxed out the memory and replaced the regular ...



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