Biostar P4M900-M4 Setup Manual - Page 14
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Motherboard Manual ATX Power Source Connector: JATXPWR1 JATXPWR1 allows user to connect 24-pin power connector on the ATX power supply. 12 24 1 13 Pin Assignment Pin Assignment 13 14 15 16 17 18 19 20 21 22 23 24 +3.3V -12V Ground PS_ON Ground Ground Ground NC +5V +5V +5V Ground 1 2 3 4 5 6 7 8 9 10 11 12 +3.3V +3.3V Ground +5V Ground +5V Ground PW_OK Standby Voltage+5V +12V +12V +3.3V JATXPWR2: ATX Power Source Connector By connecting this connector, it will provide +12V to CPU power circuit. 1 2 4 3 Pin 1 2 3 4 Assignment +12V +12V Ground Ground 14
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Motherboard Manual
14
ATX Power Source Connector: JATXPWR1
JATXPWR1 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
JATXPWR2: ATX Power Source Connector
By connecting this connector, it will provide +12V to CPU power circuit.
Pin
Assignment
1
+12V
2
+12V
3
Ground
1
2
3
4
4
Ground