11
Installing the Motherboard
CPUFAN: CPU FAN Power Connector
ATX1: ATX 24-pin Power Connector
Pin Signal Name Function
1 GND System Ground
2
+12V Power +12V
3 Sense Sensor
4 Control CPU FAN control
SYSFAN/NBFAN: System/Northbridge cooling FAN Connector
Pin Signal Name Function
1 GND System Ground
2 +12V Power +12V
3 Sense Sensor
ATX12V1: ATX 12V Power Connector
Pin Signal Name
4 Ground
3 Ground
2 Ground
1 Ground
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
10 +12V 22 +5V
3 Ground 15 Ground
4 +5V 16 PS_ON
5 Ground 17 Ground
6 +5V 18 Ground
7 Ground 19 Ground
8 PWRGD 20 -5V
9 +5VSB 21 +5V
Pin Signal Name Pin Signal Name
11 +12V 23 +5V
12 +3.3V 24 Ground
Users please note that the fan connector supports the CPU cooling
fan of 1.1A~2.2A (26.4W max.) at +12V.
Make sure to connect a 4-pin ATX power cable
to ATX4P1; otherwise, the system will be un-
stable.
ATX4P1: Auxliary Power Connector for Graphics Interface
Pin Signal Name
4 +12V
3 Ground
2 Ground
1 NC
Pin Signal Name
5 + 12V
6 + 12V
7 + 12V
8 + 12V
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