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Multi i/o port addresses, Connectors, 8hardware setup – SOYO 6KB82440 User Manual

Page 12: Atx pw — atx power supply connectors, Ps/2 keyboard connector

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8

Hardware Setup

Multi I/O Port Addresses

Default settings for multi-I/O port addresses are shown in the table
below.

Port

I/O Address

IRQ

Status

LPT1*

378H

7

ECP + EPP

COM1

3F8H

4

COM2

2F8H

3

* If default I/O port addresses conflict with other I/O cards (e.g. sound

cards or I/O cards), you must adjust one of the I/O addresses to avoid
address conflict. (You can adjust these I/O addresses from the BIOS.

Note: Some sound cards have a default IRQ setting for IRQ7, which may

conflict with printing functions. If this occurs do not use sound

card functions at the same time you print.

Connectors

Attach the mainboard to case devices, or an external battery, via
connectors on the mainboard. Refer to Figure 1-1 for connector locations
and connector pin positions.

ATX PW — ATX Power Supply Connectors

The motherboard provides an ATX power supply connector. It is a
twenty-pin male header connector. Plug the connector from the power
directly onto the board connector while making sure the pin1 is in its
position.

3.3V
3.3V
GND
5V
GND
5V
GND
PW-0K
5VSB
12V

3.3V

–12V

GND

PS-ON

GND
GND
GND

–5V

5V
5V

PS/2 Keyboard Connector

A six-pin female PS/2 keyboard connector is located at the rear of the
board. Plug the keyboard jack into this connector.