Just wanna chip in and say that I have also been crashing on the DX11 client and not the DX9, with the same symptoms. Seems to be crashing the Graphics Card forcing a restart of the computer, I am running a GTX970 SC, and I have tried with literally NOTHING running except FF14 and I have rolled back with clean driver installs through the past 4 releases, all resulted in crashes and random times.

Sometime it runs for 12 hours, other times 5mins