7.CPU, chassis, and optional fan connectors(4-pin CPU_FAN, 3-pin CHA_FAN1~4, 3-pin PWR_FAN, 3pin OPT_FAN1~2)

The fan connectors support cooling fans of 350 mA~1000 mA (24 W max.) or a total of 1 A~3.48 A (41.76 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

 

CHA_FAN4

 

CHA_FAN3

 

CHA_FAN1

 

OPT_FAN1

 

OPT_FAN2

BLITZ FORMULA

CHA_FAN2

BLITZ FORMULA Fan connectors

CPU_FAN

PWR_FAN

CPU FAN PWM

 

 

 

 

 

 

CPU FAN IN

 

 

 

 

 

 

Rotation

 

 

 

 

 

 

CPU FAN PWR

 

 

 

 

 

 

+12V

 

 

 

 

GND

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

CHA_FAN1 CHA_FAN2

Rotation

 

 

 

Rotation

 

 

 

 

 

 

 

 

+12V

 

 

 

 

+12V

 

 

 

 

 

 

 

GND

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

CHA_FAN3 CHA_FAN4

Rotation

 

 

 

Rotation

 

 

 

 

 

 

 

 

+12V

 

 

+12V

 

 

 

 

 

 

GND

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT_FAN1 OPT_FAN2

GND +12V Rotation

Rotation

 

 

 

 

 

+12V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Only the CPU_FAN, CHA_FAN1~3, and OPT_FAN1~2 connectors support the ASUS Q-Fan2 feature.

If you install two VGA cards, we recommend that you plug the 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