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Apple Computing Products:
macOS - Desktop Hardware
Changing OEM HD on iMac to SSD
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<blockquote data-quote="Exodist" data-source="post: 1629530" data-attributes="member: 284358"><p>Its not extra space someone looks for when upgrading to a SSD, its speed. While USB3.0 is a great option for storage at R/Ws of around 120 to 130ish. It however does not compare to a SSD R/W speed of around 500MB/s. Soon as you hit about 350MB/s, the performance of your system greatly improves and after getting used to the responsiveness and disk speed. It really is hard to go back to a normal HDD even if its a 7200RPM drive.</p><p></p><p>That said a great option, while not an easy one for iMacs is to swap out the HDD for a SSD, then put they original HDD in a USB 3.0 enclosed for extra speed. Now another option is to put in the SSD and keep the original HDD installed. This will require some additional ribbon cables likely from OWC. You can then re-install the entire system, after formatting both drives in the bootable recovery mode. The system many times will see that there is a SSD and HDD and give the user the option to build those into a Fusion Drive Array, which then gives you a balance of speed and drive space. I did this with my Mac Mini and now have a 1.25TB Fusion Drive that has speeds over 350 MB/s on both Reads and Writes, plus ton of drive space. Which runs great even using video editing like in Final Cut Pro X.</p></blockquote><p></p>
[QUOTE="Exodist, post: 1629530, member: 284358"] Its not extra space someone looks for when upgrading to a SSD, its speed. While USB3.0 is a great option for storage at R/Ws of around 120 to 130ish. It however does not compare to a SSD R/W speed of around 500MB/s. Soon as you hit about 350MB/s, the performance of your system greatly improves and after getting used to the responsiveness and disk speed. It really is hard to go back to a normal HDD even if its a 7200RPM drive. That said a great option, while not an easy one for iMacs is to swap out the HDD for a SSD, then put they original HDD in a USB 3.0 enclosed for extra speed. Now another option is to put in the SSD and keep the original HDD installed. This will require some additional ribbon cables likely from OWC. You can then re-install the entire system, after formatting both drives in the bootable recovery mode. The system many times will see that there is a SSD and HDD and give the user the option to build those into a Fusion Drive Array, which then gives you a balance of speed and drive space. I did this with my Mac Mini and now have a 1.25TB Fusion Drive that has speeds over 350 MB/s on both Reads and Writes, plus ton of drive space. Which runs great even using video editing like in Final Cut Pro X. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Changing OEM HD on iMac to SSD
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