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CPU_FAN: Cooling Fan Power Connectors
Pin Signal Name Function
1 GND System Ground
2 +12V Power +12V
3 Sense Sensor
4 PWM CPU FAN control
SYS_FAN: Cooling Fan Power Connector
Pin Signal Name Function
1 GND System Ground
2 +12V Power +12V
3 Sense Sensor
ATX_POWER: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 Ground
6 +5V 18 Ground
7 Ground 19 Ground
8 PWRGD 20 -5V
9 +5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 Ground
ATX12V: ATX 12V Power Connector
Pin Signal Name
1 Ground
2 Ground
3 +12V
4 +12V
SPK: Internal speaker
Pin Signal Name Pin Signal Name
1 Output 2 GND
3 Output 4 Ground
5 GND 6 GND
7 N/A 8 VCC