


First, the new default for Disk Utility “Show Only Volumes” (a formatted partition of a drive) as seen below keeps the SSD from being seen.If the new SSD is not appearing for initialization and erasing/partitioning.Highlight the SSD and click the Erase button. The Timetec SSD will be listed in Disk Utility. In this message, click the button Initialize.Ģ. When the SSD is noticed by the Mac, you will see a message telling you that the drive cannot be read by this computer. If you are adding a drive to an existing setup, connect the SSD via SATA to USB cable or other external connection method and enter Disk Utility, or install the SSD internally into your system and enter Disk Utility via the OS X Recovery tool or your installation media. If you have not upgraded, follow our guide for earlier versions of OS X.ġ. Follow the steps in this article if you are using OS X El Capitan or later.

Initialize an SSD in OS X El Capitan and laterīefore you can use your new SSD with your Mac, or install OS X onto it, you have to initialize and partition it first.
