Asus P5Q SE/R - Manual (Page 53)

ASUS P5Q SE/R 2-29
8. 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!
Only the CPU_FAN and CHA_FAN connector support the ASUS Q-FAN feature.
9. Serial port connector (10-1 pin COM1)
This connector is for a serial (COM) port. Connect the serial port module
cable to this connector, then install the module to a slot opening at the back
of the system chassis.
The serial port module is purchased separately.
P5Q SE/R
P5Q SE/R Fan Connectors
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CPU_FAN
CHA_FAN
GND
Rotation
+12V
PWR_FAN
GND
Rotation
+12V
P5Q SE/R
P5Q SE/R COM Port Connector
PIN1
COM1