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Model A1419 / Late 2013 / 3.2 & 3.4 GHz Core i5 or 3.5 GHz Core i7 Processor, ID iMac14,2

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Upgrade HDD to SSD

I know I can't add the PCIe SSD right now, but If I just want to swap the 1tb HDD for a SSD is it a big deal? I've read, you need the thermal sensor... Has anyone done this? Should I just take it back and get A Imac with fusion drive and update the PCIe later when OWC figures it out? I've got the ifixit kit and samsung pro ssd and I'm ready to go but I just wanted some opinions.

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You might want to consider an external Thunderbolt enclosure this this:

or this one:

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I may not know what I'm talking about but won't that defeat the point? Won't the connection be slower then an SSD connected to a SATA III connection?


Apple thinks it's so fast that you can't even add internal storage on the new mac Pro. It appears to be 4 times faster than Firewire 800. Take a look at the speed test using the various connections for an idea of just how fast Thunderbolt is: This video using an external SSD vs an internal SATA blew me away:


Take at look at this one, I've convinced myself to go with a Thunderbolt external myself. I like that Seagate one as I can just slap a drive into it.


So in the first video he gets read / write speeds of 170 / 180 using external SSD. I wish I could compare this against a internal SSD but I can't find anything. My work macbook pro, three weeks old, has a 500g PCIe SSD so I tested that using the same software. I got 415 / 418

I think I'm just going to take it back and get the 500g or 256g SSD instead. You can't beat those speeds. I should have just ordered it with an SSD in the first place.


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The first linked Thunderbolt enclosure, the Seagate Backup Plus Portable Thunderbolt Adapter, is limited to ~320 MB/s read speed and ~380 MB/s write speed.

For me, this was much faster than the base 1TB 7200RPM HDD; however, I bought the brand new Samsung 850 Pro, which is rated roughly 550 MB/s read and write speeds.

So, keep those limits in mind when buying a thunderbolt adapter.

I cannot comment on the Delock.

I read that the Lacie Thunderbolt drive had a much faster I/O limit, and one just removes the original Lacie HDD included inside the enclosure.

I'm researching now wether or not I can just remove the included 1TB HDD and replace it with my 2.5" SSD with the appropriate 2.5" to 3.5" bracket adapter.

I'll update here.

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