Dell Dimension K0004 Owner's Manual page 23

optional VGA
adapter
If one monitor has a VGA connector and the other one has a DVI
connector:
Connect the VGA connector on the monitor to the VGA (blue)
a
connector on the computer.
Connect the DVI connector on the other monitor to the DVI
b
(white) connector on the computer.
Setting Up and Using Yo ur Comput er
HINT: If you are
connecting two flat panel
monitors, at least one of
them must have a VGA
connector.
23