Asus M4A77 - CPU and Chassis Fan Connectors (4-pin CPU_FAN and 3-pin CHA_FAN)

CPU_FAN
GND CPU FAN PWR CPU FAN IN CPU FAN PWM
M4A77
M4A77 fan connectors
GND +12V Rotation
CHA_FAN
8. CPU and chassis fan connectors (4-pin CPU_FAN and 3-pin CHA_FAN)
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.
Only the 4-pin CPU fan supports the ASUS Q-Fan feature.
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.
Chapter 1: Product introduction1-28