I recently bought a Lenovo t450s with i5 processor, 8GB Ram, and 500GB 7200rpm HDD. I decided to upgrade to a 500GB SSD, a Crucial MX200, which is supposed to be compatible. I received recovery disks from lenovo and began the process of imaging the new SSD, but received the pxe-p61 media test failure error. I double checked and am pretty sure it is installed correctly with all the connections lined up. In lenovo diagnostics it looks like the ssd is not recognized. I am not sure if it is a hardware issue or what at this point. Any help or guidance would be greatly appreciated!