It was all alright until I connected other HDD to check if it's working. After plugging back in V4 I noticed that it doesnt show up in My Computer or disk management. It's like it doesnt exist. I have connected it to Sata6gb Intel (z77 Sabertooth) and now tried Asmedia controller port, and still doesnt show up. I have plenty stuff on that V4, need it back. Please help!