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(9) Power Source Selection for USB: JUSBV1/ JUSBV2/ JUSBV3/ JUSBV4
JUSBV1/ JUSBV2/
JUSBV3/ JUSBV4
1
3
Pin 1-2 close
1
3
Pin 2-3 close
Note: 1. In order to support this function "Power-on the system via USB
devices", "JUSBV1/JUSBV2/ JUSBV3/ JUSBV4" jumper cap should
be placed on pin 2-3 respectively.
2. Use +5V Standby Voltage for S3 mode.
(10) 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
1
+3.3V
2
+3.3V
3
Ground
4
+5V
5
Ground
6
+5V
7
Ground
8
PW_OK
9 Standby Voltage 19
+5V
10
+12V
Assignment
+5V
+5V Standby
Voltage
PIN Assignment
11
+3.3V
12
-12V
13
Ground
14
PS_ON
15
Ground
16
Ground
17
Ground
18
-5V
+5V
20
+5V
BIOSTAR Motherboard
Description
JUSBV1: 5V for USB port located at
the JUSBLAN1 connector port.
JUSBV2: 5V for USB port located at
the J1394_USB1 connector port.
JUSBV3: 5V for USB port located at
the JUSB3 connector port.
JUSBV4: 5V for USB port located at
the JUSB4 connector port.
JUSBV1: JUSBLAN1 port powered
with standby voltage of 5V.
JUSBV2: J1394_USB1 port powered
with standby voltage of 5V.
JUSBV3: JUSB3 port powered with
standby voltage of 5V.
JUSBV4: JUB4 port powerered with
standby voltage of 5V.
10
1
20
1 1
11 11 11 11 11
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