Multi Monitor optilex sff 760

Hi

We want to connect multi-monitor (3 at least), With Optiplexx 760, it has 2 output video (VGA and display port)

Is it possible to use Ati X1300 to conecte the 3the monitor ? When I Insert this card, the output display port and VGA are disable.

Is it another graphic card, I can use ?.

Thank