Biostar U8638 U8636 user's manual - Page 18
ATX 20-pin Power Connector: JATXPWR1, 4. ATX 12V Power Connector: JATXPWR2, 5. AUX Power
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4-3. ATX 20-pin Power Connector: JATXPWR1 PIN 1 2 3 4 5 6 7 8 9 10 Assignment 3.3V 3.3V Ground 5V Ground 5V Ground PW_OK 5V_SB 12V PIN 11 12 13 14 15 16 17 18 19 20 Assignment 3.3V -12V Ground PS_ON Ground Ground Ground -5V 5V 5V 4-4. ATX 12V Power Connector: JATXPWR2 PIN 1 2 Assignment 12V 12V PIN 3 4 Assignment Ground Ground 4-5. AUX Power Connector: JAUXPWR1(Optional) PIN 1 2 3 Assignment Ground Ground Ground PIN 4 5 6 Assignment 3.3V 3.3V 5V
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4-3. ATX 20-pin Power Connector: JATXPWR1
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
4-4. ATX 12V Power Connector: JATXPWR2
PIN
Assignment
PIN
Assignment
1
12V
3
Ground
2
12V
4
Ground
4-5. AUX Power Connector:
JAUXPWR1(Optional)
PIN
Assignment
PIN
Assignment
1
Ground
4
3.3V
2
Ground
5
3.3V
3
Ground
6
5V