I now don't think it's the hard drive and that something is wrong with my MBP. I can't do a clone without it reporting "write errors" and DriveDx is showing CRC errors saying it might be the cable. I can't recreate the problem with the factory hard drive so what do I do? Can I take my Macbook into the Apple store with the SSD and will they still help me or does it need to have the original hard drive for them to consider something is wrong with the actual laptop? I'm almost positive it's not the ssd because now two have done the same thing in the row. All the new OS X installs I try and do fail with different problems. Also after cloning my current bootable partition back to my new SSD the SSD randomly disappears from the disk utility and the computer says it's unplugged even though it's installed in the internal bay. I put my hdd back in and DriveDx isn't reporting the same thing. The only thing I can think that I changed is the firmware on my 840 Pro. It seems around that time that it started acting up.