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Current version by: sven ,

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I seem to be havinghave solved the same problemproblem! At least for my machine. I have late 2011 MBPended up ringing the local mac people and have boughtwas told that when they install an iFixitSSD optical drive caddy to replace- they put the SSD in the place that the original HD is and put the original in the caddy, because the original architecture can support 6Gb/s whereas the optical drive and installedonly supports 3Gb/s - But a samsung 850 EVO 500gb SSD. The drive runs fine as an external drive usingstandard HD can use the USB cable, but when it is installed internally it won't allow it to be formatted. Even when it is formatted3Gb/s speed of the optical drive. So I did all that, swapped them over, used the original HD externally and then installed internally won't allow files to be writtenshift all my data etc to it or install the OS. Some ofnew SSD, installed the answers are saying use another cable or replaceoriginal HD in the SSD.caddy and hey presto!! I bought this combo becausehave a new machine that is now FAST! It is running like a new mac. Very impressed. This seems to be the reseller assures mesolution. Put the SSD in the original HD space and the original in the caddy. Hope it works for the majority of cases issue-free. So what makes mine not work?other people.
I seem to be havinghave solved the same problemproblem! At least for my machine. I have late 2011 MBPended up ringing the local mac people and have boughtwas told that when they install an iFixitSSD optical drive caddy to replace- they put the SSD in the place that the original HD is and put the original in the caddy, because the original architecture can support 6Gb/s whereas the optical drive and installedonly supports 3Gb/s - But a samsung 850 EVO 500gb SSD. The drive runs fine as an external drive usingstandard HD can use the USB cable, but when it is installed internally it won't allow it to be formatted. Even when it is formatted3Gb/s speed of the optical drive. So I did all that, swapped them over, used the original HD externally and then installed internally won't allow files to be writtenshift all my data etc to it or install the OS. Some ofnew SSD, installed the answers are saying use another cable or replaceoriginal HD in the SSD.caddy and hey presto!! I bought this combo becausehave a new machine that is now FAST! It is running like a new mac. Very impressed. This seems to be the reseller assures mesolution. Put the SSD in the original HD space and the original in the caddy. Hope it works for the majority of cases issue-free. So what makes mine not work?other people.

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open

Original post by: sven ,

Text:

I seem to be having the same problem. I have late 2011 MBP and have bought an iFixit caddy to replace the optical drive and installed a samsung 850 EVO 500gb SSD. The drive runs fine as an external drive using the USB cable, but when it is installed internally it won't allow it to be formatted. Even when it is formatted externally and then installed internally won't allow files to be written to it or install the OS. Some of the answers are saying use another cable or replace the SSD. I bought this combo because the reseller assures me it works for the majority of cases issue-free. So what makes mine not work?

Status:

open