Intel S3420GPLC Product Specification - Page 102
Fan Headers
UPC - 735858211819
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Connector/Header Locations and Pin-outs Intel® Server Board S3420GP TPS 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) Pin 1 2 3 4 Table 58. SSI 4-pin Fan Header Pin-out (J6D1, J1J4, J6J2, J7J1, J6B1) Signal Name Ground 12 V Fan Tach Fan PWM Type GND Power In Out Description Ground is the power supply ground Power supply 12 V FAN_TACH signal is connected to the Integrated BMC to monitor the fan speed FAN_PWM signal to control fan speed 90 Revision 2.4 Intel order number E65697-010