Soyo sy-7isa+ User Manual

Page of 97
Hardware Installation 
SY-7ISA+ 
37 
(2) Chassis Cooling Fan 
Some chassis also feature a cooling fan. This Motherboard features a 
CHAFAN connector to provide 12V power to the chassis fan. Connect the 
cable from the chassis fan to the CHAFAN 3-pin connector. Install 
according to the following pin assignment:   
 
 
 
 
 
 
 
 
 
 
(3) System Fan 
 
 
 
Note: CPU cooling fan must be installed to prevent CPU from 
overheating and ensure system stability. Chassis cooling fan is 
optional, depending on whether there is cooling fan in your chassis.
 
System Fan
SYSFAN Pin Assignment
SENSOR
12V
GND
1
3
2
SENSOR
12V
GND
1
3
2
Chassis Cooling Fan
CHAFAN Pin Assignment