Connecting multiple external displays

Connecting multiple external displays
Your desktop PC comes with VGA, HDMI, and DVI ports and allows you to connect multiple 
external displays. 
Setting up multiple displays
When using multiple monitors, you are allowed to set display modes. You can use the 
additional monitor as a duplicate of your main display, or as an extension to enlarge your 
Windows desktop. 
To set up multiple displays: 
Turn off your computer.
Connect the two monitors to your computer and connect the power cords to the 
monitors. Refer to Setting up your computer section in Chapter 1 for details on how 
to connect a monitor to your computer. 
When a graphics card is installed in your computer, connect the monitors on the output 
ports of the graphics card.
For some graphic cards, only the monitor that is set to be the primary display has display 
during POST. The dual display function works only under Windows.