Asus P5LD2 P5LD2 English Edition User's Manual - Page 51

9. CPU, Chassis, and Power Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1, CHA_FAN2, 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! GND CPU FAN PWR CPU FAN IN CPU FAN PWM CPU_FAN PWR_FAN CHA_FAN2 CPU_FAN PWR_FAN GND +12V Rotation P5LD2 ® CHA_FAN1 P5LD2 Fan connectors CHA_FAN1 GND +12V Rotation CHA_FAN2 Rotation +12V GND Only the CPU_FAN connector supports the ASUS Q Fan feature. 10. 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 highlevel 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. P5LD2 +5VSB_MB Chassis Signal GND ® CHASSIS P5LD2 Chassis intrusion connector (Default) ASUS P5LD2 2-29