Asus M2N 1394 - Manual (Page 36)

1-26 Chapter 1: Product introduction
6. CPU, Chassis, and Power Fan connectors
(4-pin CPU_FAN, 3-pin CHA_FAN1)
The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a
total of 1A~3.48A (41.76W max.) at +1V. 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.
Only CPU Fan connector supports Q-Fan function.
M2N 1394
®
M2N 1394 CPU fan connector
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CPU_FAN
7. 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.
M2N 1394
®
M2N 1394 Chassis intrusion connector
CHASSIS
+5VSB_MB
Chassis Signal
GND
(Default)