Can we plug two dual head PCI-Express Video Cards to power 4 monitors?
Certainly. The X2 motherboard sports two PCI-Express high performance graphics slots. Populating these with high performance dual-head video cards opens up the door for 4 monitor application. For instance, one possible application is for flight simulation, where one monitor can be used for the front view, two other for peripheral view, and the fourth one for the control panel.
