Asus P5BV - Motherboard - ATX Installation Manual page 54

9. CPU, chassis, and power fan connectors (4-pin CPU_FAN, 3-pin
CHA_FAN1, 3-pin CHA_FAN2, 3-pin CHA_FAN3, 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!
P5B-V Fan Connectors
All fan connectors support ASUS Advanced Q-Fan feature.
10. Serial port connector (10-1 pin COM1 [blue] )
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.
P5B-V COM Port Connector
The COM module is purchased separately.
2-30
PWR_FAN
CPU_FAN
Rotation
CHA_FAN2
Rotation
+12V
GND
CHA_FAN1 CHA_FAN3
Rotation Rotation
+12V
GND
COM1
PIN 1
Chapter 2: Hardware information
+12V
GND
+12V
GND