I have crash in game and also Blue Screen, it's happend only on FFXIV.

As most of us, i use Windows 8.1 Pro x64
I was on Windows 7 before i changed to processor i7, SSD and 16Go Ram, and there was no problem at all with my Graphic Card (AMD Radeon HD 6900 series).
What i see, when i'm in the control panel, is that either my SSD or the processor sometimes get a high peak (FFXIV is at 1Go400~ Ram used).

I did try a lot of things like switch my graphic pilot to an older version or try the latest one. nothing change.

The Blue Screen appear often when i'm in a crowd area (usually when there's a lot of ppl that TP for an NM hunt), sometimes after i've hit the duty finder button (when the search found something and the pop up windows appear ?)....