Asus M3A78-T Computer Hardware User Manual


 
2-10 Chapter 2: Hardware information
5. When the fan and heatsink assembly is in place, connect the CPU fan cable
to the connector on the motherboard labeled CPU_FAN.
Do not forget to connect the CPU fan connector! Hardware monitoring
errors can occur if you fail to plug this connector.
This connector is backward compatible with old 3-pin CPU fan.