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2-30 Chapter 2: Hardware information
9. CPU, chassis, and power fan connectors
(4-pin CPU_FAN, 3-pin CHA_FAN1-3, 3-pin PWR_FAN)
The fan connectors support cooling fans of 350 mA~2000 mA (24 W max.)
or a total of 1 A~7 A (84 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. Insufcient air
ow inside the system may damage the motherboard components. These are
not jumpers! Do not place jumper caps on the fan connectors!
Only the CPU-FAN and CHA-FAN 1-2 connectors support the ASUS Q-FAN 2
feature.
P5N64 WS PRO
CPU_FAN
CHA_FAN1
CHA_FAN2
CHA_FAN3
PWR_FAN
CPU_FANPWR_FAN
Rotation
+12V
GND
Rotation
+12V
GND
Rotation
+12V
GND
CHA_FAN1
CHA_FAN2
CHA_FAN3
GND
+12V
Rotation
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
P5N64 WS Professional Fan connectors
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 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 pin 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.
P5N64 WS PRO
+5VSB_MB
Chassis Signal
GND
CHASSIS
P5N64 WS Professional Chassis intrusion connector