DirectX Error
by AnsehelmOriginal Post
Since Physx2CPU didn't solve the issue completely I have another suggestion.
But, can't help exactly as I'm in EU which means I won't be able to play/test till friday. 
Anyway, the cause of this problem with Frostbite engine seem cards that were overclocked by default (by manufacturer). Dunno why and dunno how.
https://www.youtube.com/watch?v=roVB3TleVDY&feature=youtu.be
You don't have to watch the whole video, just google for your card and find out what is it's base clock. Then check in your driver options if it's different from that, examples:
Example for: GeForce GTX 680 Default Clock (MHz): 1058 Base Clock: 1006 So you should change your clock from 1058 to 1006! Example for: GeForce GTX 770 Default Clock (MHz): 1085 Base Clock: 1046 So you should change your clock from 1085 to 1046! Example for: GeForce GTX 660 Ti Default Clock (MHz): 980 Base Clock: 915 So you should change your clock from 980 to 915! Example for: NVidia Geforce GTX 780 Ti Default Clock (MHz): 928 Base Clock: 876 So you should change your clock from 928 to 876!
For ATI cards, to change clock to it's default you need to open AMD CCC, then choose AMD Overdrive.
For nVidia cards, open NVidia control panel and find Clock value. If it's not there, you need nVidia System tools (http://www.nvidia.com/object/nvidia-system-tools-6.08-driver.html#source=gss - install only Nvidia System Performance from the package and it'll add Performance option in nVidia Control Panel).
You may always check the clock value and other card info with this utility:
http://www.techpowerup.com/gpuz/
I suggest not experimenting with clock values. Write down what manufacturer used so you can return that value after you're done with DA3 or if EA fixes the issue.
