Crucial ssd not detected

My MBP 13" Unibody Late 2011 is not detecting Crucial SSD 512gb even after I replaced the sata cable purchased from

I currently have actually Sandisk SSD 256gb and is working good. But I have actually also bought Crucial SSD 512 to upgrade my existing SSD to double capacity.

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I realize that this new essential (512gb)SSD functions if I affix as outside USB drive and pack OS likewise. But when I place inside replacing my current SSD, it does not work-related. There comes a "?" Folder Icon and can not proceed.

Looking forward your tip to deal with my present SSD upgrading worry please!

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What is the SATA specs of the Crucial SSD? Did you delete the FAT partition it likely had actually on it and format/partition the drive with a GUID partition?

MacBook Pro Specs: MacBook Pro 13" 2.4 GHz Core i5 (Late 2011)

Crucial SSD specs: Crucial MX100 512GB SATA 6Gb/s 2.5" Internal SSD

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Looking at your devices specs (see above under your question) we see your system have the right to support a SATA III (6.0 Gb/s) drives. And looking at the Crucial specs for the SSD it too is SATA III. So from a SATA I/O rate perspective its compatible.

An as you have actually managed to see the drive externally via a USB link we recognize the drive is useful.

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And now you state you have additionally replace the SATA cable. Still with no luck.

At this point I would put the original HD ago in to make certain the SATA cable link on the logic board is still functioning. If the original drive functions we have actually isolated it earlier down to the SSD unit and also the way it was ready.

Using the outside SATA to USB connection for your SSD drive allows open up Disk Utility from the HD thats currently running your system. Keeping it on the First Aid tab, lets take a look at the drive:

In the left column click on the drive its self (the majority of left icon). Then looking at the bottom you need to see to columns of indevelopment in the bottom best column you need to check out this: Partition Map Scheme: GUID Partition Table If not your drive is not appropriately prepped to be a bootable drive for Mac OS-X. Use the Erase tab to reformat the drive and also make sure you set the format for Mac OS Extfinished (Journaled).

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Next off if your Map scheme is correct you need to click on the second symbol just below the base symbol of your drive this is the partition symbol. Again look at the bottom information area here in the first column second entry you need to view this: Format: Mac OS Extended (Journaled) it too need to be the correct format kind so OS-X deserve to be made bootable.