User Manual

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BIOSTAR Motherboard

(15) 5V / 5VSB Selection for KB: JKBMSV1 (optional)

JKBMSV1 Assignment Description

Pin 1-2 close +5V 5V for keyboard and mouse

Pin 2-3 close +5V_SB 5V standby for keyboard and

mouse to power on your system

(16) Power Connectors: JATXPWR1/ JATXPWR2

The motherboard supports ATX power supply for the power system. Before

installing the power supply connector, please make sure that all components are

installed properly.

PIN Assignment PIN Assignment

1 +3.3V 11 +3.3V

2 +3.3V 12 -12V

3 Ground 13 Ground

4 +5V 14 PS_ON

5 Ground 15 Ground

6 +5V 16 Ground

7 Ground 17 Ground

8 PW_OK 18 -5V

9 +5V_SB 19 +5V

10 +12V 20 +5V

PIN Assignment PIN Assignment

1 +12V 3 Ground

2 +12V 4 Ground

(17) Front Panel Audio Header: JAUDIO1

The connector allows you to connect to the front panel audio.

Pin Assignment Pin Assignment

1 Mic In 2 Ground

3 Mic Power 4 Audio Power

5 RT Line Out 6 RT Line Out

7 Reserved 8 Key

9 LFT Line Out 10 LFT Line Out

11 RT Line In 12 RT Line In

13 LFT Line In 14 LFT Line In