24
On: CMOS Clear
Off: Normal
(default)
Built-in Ports
The 586IHX system board is equipped with two serial ports, one parallel
printer port, one FDD connector, two IDE hard disk shrouded headers,
and two connectors for external USB ports. Refer to page 12 for the
locations of the built-in connectors and pin 1 of those connectors.
Serial Ports
The built-in serial ports are RS-232C asynchronous communication
ports with 16C550A-compatible UARTs that can be used with modems,
serial printers, remote display terminals, and other serial devices. They
use the following system I/O addresses:
Port Configuration
Serial Port 1
Serial Port 2
COM1
3F8h*
3F8h
COM2
2F8h
2F8h*
COM3
3E8h
3E8h
COM4
2E8h
2E8h
* Default
Parallel Port
The 586IHX system board has a standard connector for interfacing your
PC to a parallel printer. The parallel port on your system board can be
set to any of the following system I/O addresses:
I/O Address
3BC-3BE Hex
378-37A Hex (default)
278-27A Hex
