User Manual

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BIOSTAR Motherboard

(18) Front 1394 Header: J1394A1 (optional)

Pin Assignment Pin Assignment

1 A1+ 2 A1-

3 Ground 4 Ground

5 B1+ 6 B1-

7 +12V 8 +12V

9 KEY 10 NA

(19) Digital Audio Connector: JSPDIF_OUT/ (JSPDIF_IN: optional)

The connector is used to connect SPDIF (Sony & Philips Digital Interconnect

Format) interface for digital audio transmission.

Pin Assignment

1 +5V

2 SPDIF_OUT

3 Ground

(20) Flash Rom Read/Write Enable : J3 (optional)

J3 Assignment

Pin1-2 on Enable the flash Rom to read and write.

Pin 1-2 off Disable the flash Rom to read and write.

(21) AUDIO DJ Connector: JDJ1 (optional)

Pin Assignment Pin Assignment

1 SMBDATA 2 SMBCLK

3 INT_B 4 KEY

5 ATX_PWROK

(22) Power Source Selection for IEEE1394: J1394V1 (optional)

J1394V1 Assignment Description

Pin 1-2 close +3.3V 3.3V for IEEE1394A connector

located at the J1394A1 header.

Pin 2-3 close +3.3V Standby Voltage 3.3V Standby Voltage for IEEE1394A

connector located at the J1394A1

header.

1 3