Asus P5QL Manual page 34

6. 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~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. Insufficient air flow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!
P5QL fan connectors
Only the CPU fan supports the ASUS Q-FAN feature.
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 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.
P5QL Chassis intrusion connector
1-24
CHA_FAN
CPU_FAN
P5QL
PWR_FAN
Rotation
+12V
GND
P5QL
GND
+12V
Rotation
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CHASSIS
Chapter 1: Product introduction