Biostar TA790GX A3 Setup Manual - Page 16

JATXPWR2: ATX Power Source Connector, JATXPWR3: ATX Power Source Connector

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Motherboard Manual JATXPWR2: ATX Power Source Connector This connector allows user to connect 24-pin power connector on the ATX power supply. 12 24 1 13 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 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 JATXPWR3: ATX Power Source Connector This connector provides +12V to CPU power circuit. 4 1 Pin Assignment 1 +12V 2 +12V 8 5 3 +12V 4 +12V 5 Ground 6 Ground 7 Ground 8 Ground 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

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Motherboard Manual
14
JATXPWR2: ATX Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
1
12
13
24
Pin
Assignment
Pin
Assignment
13
+3.3V
1
+3.3V
14
-12V
2
+3.3V
15
Ground
3
Ground
16
PS_ON
4
+5V
17
Ground
5
Ground
18
Ground
6
+5V
19
Ground
7
Ground
20
NC
8
PW_OK
21
+5V
9
Standby Voltage+5V
22
+5V
10
+12V
23
+5V
11
+12V
24
Ground
12
+3.3V
JATXPWR3: ATX Power Source Connector
This connector provides +12V to CPU power circuit.
Pin
Assignment
1
+12V
2
+12V
3
+12V
4
+12V
5
Ground
6
Ground
7
Ground
1
4
8
5
8
Ground
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.