Asus P8B75-V - Page 38

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Chapter 2: Hardware information
Chapter 2
8. CPU and chassis fan connectors
(4-pin CPU_FAN, 4-pin CHA_FAN1/2)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.
• The CPU_FAN connector supports the CPU fan of maximum 1A (12 W) fan power.
• If you install two VGA cards, we recommend that you plug the rear chassis fan cable
to the motherboard connector labeled CHA_FAN1 or CHA_FAN2 for better thermal
environment.
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!
P8B75-V
P8B75-V fan connectors
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
CHA_FAN1
CHA FAN PWM
CHA FAN IN
CHA FAN PWR
GND
CHA_FAN2
CHA FAN PWM
CHA FAN IN
CHA FAN PWR
GND