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System Board
69
Fan Headers
The CPU-FAN and PWR-FAN headers are 1 x 3-pin straight headers.
CPU-FAN controls the cooling fan on the CPU. PWR-FAN controls the
cooling fan in the power supply.
CPU-FAN header
Pin Signal Name
1Ground
2 FAN_CTRL (+12V)
3FAN_SEN
PWR-FAN header
Pin Signal Name
1Ground
2 FAN_CTRL [0 V(S3) , 2 V(S1), 12 V(S0)]
3FAN_SEN
CPU-FAN
PWR-FAN
1
1
3
3
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