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23
Installing the Motherboard
SPK: Internal speaker
Pin
Signal Name
1
VCC
2
Key
3
NC
4
Signal
PWR_FAN: FAN Power Connector
3
Sense Sensor
2
+12V Power +12V
1
GND
System Ground
Pin
Signal Name Function
Make sure to connect a 4-pin ATX power cable to ATX4P; otherwise, the
system will be unstable.
ATX12V: ATX 12V Power Connector
Pin
Signal Name
4
+12V
3
+12V
2
Ground
1
Ground