I have 3 monitors asus vk278 with a ASUS Radeon HD 7770 DC TOP gddr5... can i connect them in eyefinity useing dvi-dvi cable for 1st one , hdmi-hdmi cable for 2nd one and displayport-displayport for 3rd one?.... my last try was with dvi-dvi cable from 2 slots form my video card for 2 monitors and 1 hdmi-hdmi for the 3rd one....but the 3rd one didnt work.... i really need an active displayport adapter?