Hello,
I suggesting format the SSD with Disk managment or Diskpart in order to clear all the partitions of the drive and then performa a clean installation of the Os with the actuall Windows CD. If that still does not work then the ssd seems to be defective and needs to be replaced.
In the case of the bios its always good to have the latest version of it so contact the manufacturer of the motherboard and get the latest update.
Good luck.
