Also just check on the input settings of your monitor, I have seen some of the Dell monitors that have multiple inputs not auto detect which port the signal os comming in through. Just a minor thing that can be overlooked.
Have you swapped the monitors around to see if maybe one of the ports are bad? I am asumming that these were all monitors that you had running before hand that worked just fine. If you find out that the port isn't working then yuo can get and HDMI-DVI cable to use that port or return the card and exchange it.
Hello guys. To activate the third monitor also; so that you will be able to extend desktop on three and not only two LCDs, you need an ACTIVE display port adapter AND NOT PASSIVE. The difference between these two is that active one has also an usb connection because of some extra charging which will send out three DVI signals at once and not only two.
He is saying clearly and repeatedly that he is NOT using an adapter. He has a display port monitor which is connected to the port and functioning properly.
yes maybe you are right, but even if he is not using it, the third monitor does not work because the monitor needs an extra charging...and without usb connection he will not get it... the graphic card sends out only enough power for two monitors at the same time and not three....so his situation is even more complicated..