24
Factory Testing Jumpers
The jumpers below are for factory testing only and should always be set
to their default configurations. Reconfiguring these jumpers will cause
problems with your system board.
JP21-JP23:
Off
JP10:
Off
J14, JP14 and JP16:
1-2 On
JP4, JP5 and JP13:
2-3 On
Built-in Ports
The G586VPM/C system board is equipped with two serial ports, one
ECP/EPP parallel printer port, one FDD connector, two IDE hard disk
connectors, and one PS/2 mouse port. Please refer to page 12 for the
locations of the built-in ports.
Serial Ports
The built-in serial ports are RS-232C asynchronous communication
ports with NS16C550-compatible UARTs that can be used with mo-
dems, serial printers, remote display terminals, and other serial devices.
The G586VPM/C system board supports IRQ4 for the primary serial
port and IRQ3 for the secondary serial port. These serial ports use the
following system I/O addresses:
Port Configuration
COM 1
COM 2
I/O Address
3F8h
2F8h
Connecting the Serial Ports
Two DB-9P serial port cables are provided with the system board. 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 COM-A primary se-
rial port; connect it to Connector CN8 on the system board. The lower
serial port cable should be used for the COM-B secondary serial port;
connect it to Connector CN7 on the system board. Make sure the col-