Asus P5B PREMIUM VIST Motherboard Installation Guide - Page 53

CPU, chassis, and power fan connectors, pin CPU_FAN, 3-pin CHA_FAN1, 3-pin CHA_FAN2, 3-pin PWR_FAN,

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8. CPU, chassis, and power fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1, 3-pin CHA_FAN2, 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! CPU_FAN PWR_FAN GND CPU FAN PWR CPU FAN IN CPU FAN PWM GND +2V Rotation P5B R P5B Fan Connectors CHA_FAN GND +2V Rotation CHA_FAN2 GND +2V Rotation Only the CPU-FAN and CHA-FAN 1-2 connectors support the ASUS Q-FAN 2 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. P5B R COM PIN  P5B COM Port Connector ASUS P5B 2-29

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ASUS P5B
2-29
8.
CPU, chassis, and power fan connectors
(4-pin CPU_FAN, 3-pin CHA_FAN1, 3-pin CHA_FAN2, 3-pin PWR_FAN)
The fan connectors support cooling fans of ²50 mA ~ 2000 mA (2³ W max.)
or a total of ± A ~ 7 A (8³ W max.) at +±2V. 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 ±-2 connectors support the ASUS Q-FAN 2
feature.
P5B
P5B
Fan Connectors
CHA_FAN±
CHA_FAN2
GND
Rotation
+±2V
GND
Rotation
+±2V
GND
Rotation
+±2V
PWR_FAN
CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
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.
P5B
P5B COM Port Connector
PIN ±
COM±