DFI G586VPA User Manual page 35

Serial Ports
The built-in serial ports are RS-232C asynchronous
communication ports with 16C550-compatible UARTs
that can be used with modems, serial printers, remote
display terminals, and other serial devices. The
G586VPB system board supports IRQ4 and IRQ5 for
the primary serial port and IRQ3 and IRQ9 for the
secondary serial port. These serial ports use the follow-
ing system I/O addresses:
Port Configuration
COM1
COM2
COM3/COM4
Connecting the Serial Ports
Two DB-9P serial port cables are provided with the
motherboard. They are mounted on a card-edge bracket
along with the PS/2 mouse cable. The upper serial port
cable should be used for the COM1/3 primary serial
port; connect it to Connector CN4 on the motherboard.
The lower serial port cable should be used for the
COM2/4 secondary serial port; connect it to Connector
CN5 on the motherboard. Make sure the colored stripes
on the ribbon cables align with pin 1 of Connectors CN4
and CN5. Mount the card-edge bracket to the system
chassis.
G586VPB
I/O Address
3F8h
2F8h
220h/228h, 2E8h/2E0h,
3E8h/2E8h or 338h/238h
Installation Overview u 2-25