Having the same problem. The error started to appear after beclient updated to version 1.193 Then i removed the beclient.dll from arma2oa\expansion\battleye\ and put the one i download from battleye.com and the error is gone. Now beclient updated again to 1.194 and the previous fix dont work. Sorry my english, I am brazilian

Try remove beclient.DLL from arma 2 os then redownload from battleeye.com

Sorry my english, i am brazilian. I have a config like you. I7 3770k - 4.6 GHz. MSI R7970 lightning. 16 GB RAM Gskill 1600. Ocz vertex 4 SSD. PSU Ocz zx1250, motherboard Asus Maximum V Formula. Last version of drivers. , arma and dayz and have same issue. A round 20 to 30 FPS in cherno with medium settings. Can not play in very high. My arma and dayz are not in my ssd, they are on a diferent hd, not on ssd