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2-30 Chapter 2: Hardware information
7. CPU, chassis, power, and chipset 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. Insufcient air
ow inside the system may damage the motherboard components. These are
not jumpers! Do not place jumper caps on the fan connectors!
P5B-E PLUS
®
P5B-E PLUS Fan connectors
CPU_FAN
CHA_FAN1
GND
Rotation
+12V
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CHA_FAN3
GND
Rotation
+12V
CHA_FAN2
GND
Rotation
+12V
PWR_FAN
GND
Rotation
+12V
• Only the CPU-FAN and CHA-FAN 1-3 connectors support the ASUS Q-
FAN 2 feature.
• If you install two VGA cards, we recommend that you plug the rear
chassis fan cable to the motherboard connector labled CHA_FAN1
or CHA_FAN2 for better themal environment.