robbertvdd
Level 1
(4 points)
Q: MacBook Pro (13" - Mid 2012) won't work with any SSD
I'm trying to upgrade the HDD in my MacBook Pro to an SSD. However, it refuses to work with whatever SSD in install in it. I tried several different SSDs (Corsair, SanDisk, OWC (designed for Macs and on their website it says they are guaranteed to work in this MacBook Pro) and even an old SATA II OCZ), but not one of them works. Every time I install an SSD in my MacBook Pro it only shows a grey screen while booting.
In System Report it shows a Link Speed of 6 Gb, but only a Negotiated Link Speed of 1.5 Gb. Shouldn't both of them be 6 Gb? My old MacBook (13" - Early 2009) which I upgraded to an SSD has only SATA II and shows 3 Gb for bot Link Speed and Negotiated Link Speed.
Kappy
Level 10
(270,334 points)
It won't work if you don't partition and format it then install OS X. If all you've done is put it in the box, then the gray screen is what you should get. You will need to do the following.
Clean Install of El Capitan for New Drive
Restart the computer. Immediately after the chime hold down the Command-Option-R keys until a globe appears.
The Utility Menu will appear in from 5-20 minutes. Be patient.
Select Disk Utility and click on the Continue button.
When Disk Utility loads select the drive (usually, the out-dented entry) from the side list.
Click on the Partition tab in Disk Utility's main window. A panel will drop down.
Set the partition scheme to GUID.
Set the Format type to Mac OS Extended (Journaled.)
Click on the Apply button, then click on the Done button when it activates.
Quit Disk Utility and return to the Utility Menu.
Select Reinstall OS X and click on the Continue button.
This should install the version of OS X that was pre-installed when the computer was new.
