Biostar TA990FXE Setup Manual - Page 9
CPU_FAN1: CPU Fan Header, SYS_FAN1: System Fan Header, SYS_FAN2: NorthBridge Fan Header - cpu support
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TA990FXE 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. CPU_FAN1: CPU Fan Header 1 4 Pin Assignment 1 Ground 2 +12V 3 FAN RPM rate sense 4 Smart Fan Control (By Fan) SYS_FAN1: System Fan Header SYS_FAN2: NorthBridge Fan Header SY S _ FA N2 31 13 Pin Assignment 1 Ground 2 +12V 3 FAN RPM rate sense SY S _ FA N1 Note: CPU_FAN1, SYS_FAN1/2 support 4-pin and 3-pin head connectors. When connecting with wires onto connectors, please note that the red wire is the positive and should be connected to pin#2, and the black wire is Ground and should be connected to GND. 7
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