Today I tried to install a new 240GB Seagate 600 SSD in my MacBook Pro. I already have a 120GB SanDisk Extreme SSD in this MacBook Pro and it works fine, but I wanted a little bit more storage and got a really good deal on Black Friday. Anyways, installing OS X 10.9.1 on the SSD seemed completely fine, and I imported my old data to the new drive using Migration Assistant. Here is where it get weird. For the first couple of times the system booted and shut down completely fine. When I started doing a little bit of stress testing however (opening every single application at the same time), it stopped booting after I restarted it. It is just stuck on the grey Apple logo with the little spinning circle below it. I tried booting it using Safe Mode and it does not work either. It also ignored my command of booting it by Verbose Mode. When I tried to repair the drive using Recovery HD it tells me that there is some problem with repairing the partition map and that "live file system repair is not supported". For now I have reinstalled my old drive and it works fine. Using a USB bridge I am able to read the data on the new SSD just fine, but just could not get it to boot. The S.M.A.R.T status on the new drive shows "Not Supported". Has anyone here have a similar problem? Is this solely a drive problem or does it involve any other issues? Thanks!