Connector/Header Locations and Pin-outs Intel® Server Board S3420GP TPS
Revision 2.4
Intel order number E65697-010
90
7.7 Fan Headers
The server board provides five SSI-compliant 4-pin fan headers to be used as the CPU and
chassis. The pin configuration for each of the 4-pin fan headers is identical and defined in the
following table.
One 4-pin fan headers are designated as processor cooling fans:
- CPU fan (J6D1)
- SYS1 fan (J1J4)
- SYS2 fan (J6J2)
- SYS3 fan (J7J1)
- SYS4 fan (J6B1)
Table 58. SSI 4-pin Fan Header Pin-out (J6D1, J1J4, J6J2, J7J1, J6B1)
Pin Signal Name Type Description
1 Ground GND Ground is the power supply ground
2 12 V Power Power supply 12 V
3 Fan Tach In FAN_TACH signal is connected to the Integrated BMC to monitor the fan
speed
4 Fan PWM Out FAN_PWM signal to control fan speed
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