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

CHA_FAN2 CPU_FAN

GND +12V Rotation

CHA_FAN1

CPU FAN PWM CPU FAN IN CPU FAN PWR GND

P8Q77-M

GND

 

+12V

 

Rotation

P8Q77-M Fan connectors

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!

• The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.

• Only the 4-pin CPU fan supports the ASUS FanXpert and Q-Fan 2 feature.

4.Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event.

By default, the pin labeled “Chassis Signal” and “Ground” are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature.

P8Q77-M

CHASSIS

+5VSB MB

Chassis Signal GND

 

 

 

 

 

 

 

 

 

 

P8Q77-M Chassis intrusion connector

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ASUS P8Q77-M