11
Installing the Motherboard
CPU_FAN: FAN Power Connector
1 GND System Ground
2
+12V Power +12V
3 Sense Sensor
4 Control FAN Speed control
Pin Signal Name Function
Users please note that the fan connector supports the CPU cooling fan of
1.1A~2.2A (26.4W max) at +12V.
PWR_FAN/SYS_FAN: FAN Power Connectors
Pin Signal Name Function
1 GND System Ground
2 +12V Power +12V
3 Sense Sensor
SPK1: Internal speaker
Pin Signal Name
4 Signal
3 NO
2 Key
1 VCC
ATX1: ATX 24-pin Power Connector
Pin Signal Name Pin Signal Name
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
3 Ground 15 COM
4 +5V 16 PS_ON
5 Ground 17 COM
6 +5V 18 COM
7 Ground 19 COM
8 PWRGD 20 -5V
9 +5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 COM
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