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2-26 Chapter 2: Hardware information
6. CPU, chassis and power fan connectors
(4-pin CPU_FAN, 3-pin CHA_FAN1-2, 3-pin PWR_FAN, 3-pin OPT_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!
P5K64 WS
P5K64 WS Fan Connectors
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CPU_FAN
PWR_FAN
OPT_FAN
GND
Rotation
+12V
GND
Rotation
+12V
CHA_FAN2
CHA_FAN1
GND
Rotation
+12V
GND
Rotation
+12V
• Only the CPU-FAN and CHA-FAN 1-2 connectors support the ASUS
Advanced Q-Fan 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.