when i try connect 3rd monitor all monitors go black?

packer28

Honorable
Aug 19, 2013
44
0
10,530
hi guys i currently own i5 3570 ,7970,600 watt and 3 aoc 22 inch monitors.I had these 3 monitors working perfect over last few months but i had to use drive sweep and install new drivers cause of black screen start.I connected the other 2 monitors but black screens all around. unplugged the active display port monitor in the middle and then the 2 other monitors DVI worked .Cant figure it out