I have recently gone from 1 290x to a dual-gpu 295x2 (msi) and it doesn't want to use both Gpus in Ffxiv. One gpu is at 1018mhz but other 300mhz both 100% utilization.

Most Other games and applications are working with crossfire in this configuration just fine.

System specs:
Intel 4770k
Asus Maximus vii hero
16gb g.skill tridentx 2400
Msi Radeon r9 295x2
Samsung 840pro ssd x2
Asus xonar STX
Seasonic platinum 1000
Windows 8.1 x64
Yamakasi catleap @120hz overclock

I'm using a very common Korean overclocking 1440p monitor with an edid custom resolution to force 120hz. Looks amazing in game while it works.

In order to get crossfire to work in Ffxiv I have to install windows 8.1 without ANY of the following items:
Intel Rapid Storage tech
Samsung magician
Msi afterburner
Hwinfo64
ITunes...

That's the list so far. If I avoid installing those crossfire works in game perfectly.

The graphics card was rediculously expensive and I got it mostly to play this game. Please help! Thanks