Connecting multiple external displays
Your desktop PC may come with VGA, HDMI, or DVI ports and allows you to connect multiple
When a graphics card is installed in your computer, connect the monitors on the output ports of
the graphics card.
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.
K20DA / A20DA / F20DA
K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG
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.
ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG