Biostar GF7025-M2 Setup Manual - Page 10
JCFAN1: CPU Fan Header, JNFAN1: North Bridge Fan Header Optional, JSFAN1: System Fan Header - cpu support
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Motherboard Manual 2.2 FAN HEADERS These fan headers support cooling-fans built in the computer. The fan cable and connector may be different according to the fan manufacturer. Connect the fan cable to the connector while matching the black wire to pin#1. JC FAN1: C PU Fan Heade r 1 4 Pin Assignment 1 Ground 2 +12V 3 FAN RPM rate sense 4 Smart Fan Control (By Fan) JNFAN1: North Bridge Fan Heade r (Optional) JSFAN1: System Fan He ader JNF AN 1 (Optional) 3 1 J SFAN 1 Pin Assignment 1 Ground 2 +12V 3 FAN RPM rate sense 31 Note: The JCFAN1 supports 4-pin head c onnector. The J SFAN1 and JNFAN1 s upport 3-pin head connectors. When connecting with wires onto connectors, pleas e note that the red wire is the positi ve and s hould be c onnected to pin#2, and the bl ac k wire is Ground and shoul d be connected to GND. 10