This happened 3rd time since I got my system back from RMA 2 months ago. I have no idea what's wrong. I would say its a faulty SSD drive. What exactly happens is, when I'm on Firefox, system suddenly just freezes as it would do some operation. When I restart computer it's not detecting my SSD drive on which I have my OS. What I have to do to make it work again (and it worked all 3 times) is unscrew the panel where all the cables are hidden unplug cables from SSD drives and plug them back in. Then when I start the system, my SSD works like nothing happened. I'm worried that one day it will freeze and unplugging cables won't help... Any suggestions please?