Asus M2N GREEN M2N DH English Edition User's Manual - Page 49
CPU, chassis, and power fan connectors 4-pin CPU_FAN, 3-pin, CHA_FAN, 3-pin PWR_FAN, Chassis
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7. CPU, chassis, and power fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN, 3-pin PWR_FAN) The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.) or a total of 1 A ~ 3.48 A (41.76 W max.) at +12V. Connect the fan cables to the fan connectors on the motherboard, making sure that the black wire of each cable matches the ground pin of the connector. Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors! CPU_FAN GND CPU FAN PWR CPU FAN IN CPU FAN PWM PWR_FAN R CHA_FAN Rotation +12V M2N/M2N DH Fan Connectors GND 8. Chassis intrusion connector (4-1 pin CHASSIS) This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event. By default, the pins labeled "Chassis Signal" and "Ground" are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature. Rotation +12V GND R CHASSIS GND Chassis Signal (Default) +5VSB_MB M2N/M2N DH Chassis Intrusion Connector ASUS M2N / M2N DH 2-27