TYAN S4992 Manual page 15

J37
J3
J36
J6
J1
J32
J4
J5
J7
J34
J1/J3/J4/J5/J6/J7/J32/J34/J36/J37: 4-pin fan connector
Pin 1 2 3 4
Signal GND +12V TACH PWM
Pin_1
NOTE: When using the 3-pin fans, you will have no auto fan
functionality.
9
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