Asus KN97 User Manual - Page 31

III. INSTALLATION 9. Chassis Fan, CPU Cooling Fan, & Power Supply Fan Connectors (FANPWR) These connectors support cooling fans of 500mAmp (6Watt) or less. Orientate the fans so that the heat sink fins allow airflow to go across the onboard heat sink(s) instead of the expansion slots. Depending on the fan manufacturer, the wiring and plug may be different. The red wire should be positive, while the black should be ground. Connect the fan's plug to the board taking into consideration the polarity of the this connector. NOTE: The "Rotation" signal is to be used only by a specially designed fan with rotation signal. WARNING: The CPU and/or motherboard will overheat if there is no airflow across the CPU and onboard heatsinks. Damage may occur to the motherboard and/or the CPU fan if these pins are incorrectly used. These are not jumpers, do not place jumper caps over these pins. Chassis Fan Power CPU Fan Power Power Supply Fan III. INSTALLATION (Connectors) Rotation +12V GND R R 12Volt Chassis, CPU, Power Supply Fan Power 10. Chassis Open Alarm Lead (CHASSIS) This lead is for an open chassis monitor. A high level signal to the CHASSIS lead will indicate to the system that the chassis has been opened. The +5V lead comes from the onboard button cell battery to retain its function even if the power cord has been unplugged from the ATX power supply. Be sure that the load on the +5V lead is minimal to prevent constant battery replacements. Chassis open alarm lead CHASSIS +5V GND ASUS KN97-X User's Manual 31