Biostar M7MKB User Manual page 15

Chapter 1
1.3.4 ATX 20-pin Power Connector (CN1)
PIN
1
2
3
4
5
6
7
8
9
10
SIGNAL PIN
3.3V 11
3.3V 12
GND 13
5V 14
GND 15
5V 16
GND 17
PW_OK 18
5V_SB 19
12V 20
Motherboard Description
SIGNAL
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
5V
5V