8.CPU, chassis and power fan connectors(4-pin CPU_FAN, 3-pin CHA_FAN1-3, 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

P5B PREMIUM

GND CPU FAN PWR CPU FAN IN CPU FAN PWM

PWR_FAN

Rotation +12V GND

CHA_FAN2

GND +12V Rotation

CHA_FAN1 CHA_FAN3

P5B PREMIUM Fan connectors

GND +12V

GND +12V

Rotation

Rotation

•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.

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Chapter 2: Hardware information