7.CPU, chassis, and optional fan connectors

(4-pin CPU_FAN, 3-pin CHA_FAN1–3, 3-pin PWR_FAN, 3‑pin OPT_FAN1–3)

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 OPT_FAN2

CHA_FAN1

CHA_FAN3

OPT_FAN1

CPU_FAN CHA_FAN1

OPT_FAN1

IN PWM

+12V

+12V

PWR

Rotation

FAN FAN FAN

GND Rotation

GND

 

 

GND CPU CPU CPU

CHA_FAN2

OPT_FAN2

 

PWR_FAN

GND +12V Rotation

GND +12V Rotation

 

 

STRIKER II FORMULA

Rotation

OPT_FAN3

+12V

CHA_FAN2

GND

 

STRIKER II FORMULA Fan connectors

CHA_FAN3

OPT_FAN3

Rotation

GND +12V Rotation

+12V

GND

 

•Only the CPU_FAN, CHA_FAN1–3, and OPT_FAN1–3 connectors support the ASUS Q-Fan 2 feature.

•If you install two VGA cards, we recommend that you plug the chassis fan cable to the motherboard connector labled CHA_FAN1 or OPT_FAN1/3 for better themal environment.

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Chapter 2: Hardware information