Soyo SY-P4I875P User Manual

Page of 133
Hardware Installation 
SY-P4I875P DRAGON 2 V1.0 
40 
3.3V
-12V
GND
PS-ON
GND
GND
GND
-5V
5V
5V
3.3V
3.3V
GND
5V
GND
5V
GND
PW-OK
5VSB
12V
ATX Power
 
Note 2: When using the Power-On by Keyboard function, 
please make sure the ATX 12V power supply is able to provide 
at least 1220mA on the 5V Standby lead (5VSB). 
 
 
Note 3: The minimum recommended wattage is 400W for a 
fully loaded system or 350W for a minimally loaded system, 
the system might become unstable if power supply is not 
enough 
 
 
Note 4: The 4 pin ATX 12V must be connected to the motherboard. 
Without this connector, the system cannot boot.  
Please install the ATX 12V power according to the following pin assignment: 
¾  Pay special care to the directionality.  
Pin1
 
COM
 
+12VDC
+12VDC
COM
 
Pin3
 
+12V Power Connector
FIG. 1 
FIG. 2