55 Chapter 5
Checking Connector
CPU_FAN: CPU Cooling Fan Connector
Pin Signal Name Function
1 GND System Ground
2 +12V Power +12V
3 Sense Sensor
4 Control FAN Control Signal
SYS_FAN/PWR_FAN: FAN Power Connectors
Pin Signal Name Function
1 GND System Ground
2 +12V Power +12V
3 Sense Sensor
ATX_POWER: ATX 20-pin Power Connector
Pin Signal Name Pin Signal Name
1 +3.3V 11 +3.3V
2 +3.3V 12 -12V
3 Ground 13 Ground
4 +5V 14 PS ON#
5 Ground 15 Ground
6 +5V 16 Ground
7 Ground 17 Ground
8PWRGD 18-5V
9 +5VSB 19 +5V
10 +12V 20 +5V
ATX12V: ATX 12V Power Connector
Pin Signal Name
1 Ground
2 Ground
3 +12V
4 +12V
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