FireBlur :
I am trying to use three monitors on my r9 270x. It will display on two of my monitors but not the third one. The third one is detected jut wont display anything. I am using dvi to dvi, dvi to dvi and hdmi to hdmi
Most cards do NOT have 2 DVI-D (digital).
You can run all 3 monitors (usually) if you are using all three digital ports.
Display port, HDMI, and DVI-D
That being said, Win 8.1 sees all three of mine, but won't allow the third. (it did before) then I tried upgrading to a GTX 970.
UGH!!!!!!!!!!!!!!!!!!