Biostar TA790GX A3 PLUS Setup Manual page 16

Motherboard Manual
JATXPWR2: ATX Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
Pin Assignment
13 +3.3V
14 -12V
15 Ground
16 PS_ON
17 Ground
18 Ground
19 Ground
20 NC
21 +5V
22 +5V
23 +5V
24 Ground
JATXPWR3: ATX Power Source Connector
This connector provides +12V to CPU power circuit.
Note:
Before power on the system, please make sure that both JATXPWR2 and JATXPWR3
connectors have been plugged-in.
If the CPU power plug is 4-pin, please plug it into Pin 1-2-5-6 of JATXPWR3.
14
12 24
1 13
Pin Assignment
1 +3.3V
2 +3.3V
3 Ground
4 +5V
5 Ground
6 +5V
7 Ground
8 PW_OK
9 Standby Voltage+5V
10 +12V
11 +12V
12 +3.3V
4 1
8 5
Pin Assignment
1 +12V
2 +12V
3 +12V
4 +12V
5 Ground
6 Ground
7 Ground
8 Ground