SOYO SY-7ISA plus Owner's Manual page 44

Hardware Installation
Please install the ATX power according to the following pin assignment:
ATX Power
12V
5VSB
PW-OK
GND
5V
GND
5V
GND
3.3V
3.3V
2-3.3.8 CNR (Communication Networking Riser)Connector
This motherboard supports CNR (Communication Networking Riser) slot
5V
5V
-5V
GND
GND
Ø
Pay special care to the directionality.
GND
PS-ON
GND
-12V
3.3V
40
SY-7ISA+