I would contact support for the SSD and see what they say. 2nd drive failing shouldn't prevent you from booting Unless somehow you have boot manager somehow got on your 2nd SSD. This can sometimes happen on Clean Installs if you leave the 2nd drive install during the Clean install.
You can test this by Removing the 2ne drive and booting up that should answer your question.
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro