Maybe you can try to remove the plextor ssd, boot to win 7 and run the crystal disk info/HDsentinel on just the HDD. HDD even if its failing the smart info will launch.

Then clean the plextor ssd contact with eraser, put it back in and try again.

I offered my condolences...

I too had a SSD dying on me in a laptop before it was stolen. What I can say is that there will be a symptom which you will noticed (but probably wont pay too much attention to it) is that the laptop hang once in a while. I always let my company laptop 24/7 (left in on even when I leave my work). After 2years or so, sometimes I found the laptop hang when I returned to work the next day. For the first few times, I didnt really pay any attention and thought it was overheating since it is basically running a desktop chip in it. I even remove the backpanel and clean all the dirt while also reapplying new thermal paste. However it still hang just like before. Luckily for me, my sixth sense told me to at least back up once to my pendrive and guess what the drive was totally unbootable one day. I still loss some data but would have lost much more had I not back up the other day.

To all of you who own them, have you tried something like crystal disk info or victoria on all that matters anyway. And where can we go with it for example. Do you see any differences and what this tools show anyway ? I do not want to make it happeningin reality, but we have no choice.