User`s manual

2: Mainboard Installation

Infrared Port

You can connect an infrared port to the mainboard. You can

purchase this option from third-party vendors.

Pin Signal Pin Signal

1 NC 2 KEY

3 +5V 4 GND

5 IRTX 6 IRRX

1. Locate the infrared port SIR1 header on the mainboard.

2. If you are adding an infrared port, connect the ribbon cable

from the port to the SIR1 header and then secure the port to an

appropriate place in your system chassis.

Aux-In Connection

If you have installed a secondary CD-ROM drive or DVD-ROM

drive, you can connect the drive audio cable to the onboard sound

system. On the mainboard, locate the 4-pin auxiliary audio-in

header AUX_IN1, and connect the cable to the connector.

Pin Signal Pin Signal

1 AUX_L 2 AUD_GND

3 AUD_GND 4 AUX_R

Onboard LAN LED Connections

If you have a set indicator LEDs for the onboard LAN

communication, you can connect the LED cable to the header J1.

Pins 1-2 are for Link LED. Pins 3-4 are for 10/100 Mbps mode

LED, the onboard LAN run in 100 Mbps mode when the LED lit.

Function Jumper Setting

Normal Short Pins 1-2 & 3-4

LAN LED Open Pins 1-2 & 3-4

Notice: Usually, keep the jumper setting as Normal (Short Pins 1-2 & 3-

4); only turn to LAN LED (Open Pins 1-2 and 3-4) for actuating the LAN

LED indicator.

Pin Signal Pin Signal

1 Link LED 2 GND

3 GND 4 10/100 Mbps mode LED