Avalue Technology EMX-QM57 User Manual page 23

4. Connect the CPU fan cable to the connector on the motherboard labelled
CPU_FAN1.

Do not forget to connect the fan cables to the fan connectors.
Insufficient air flow inside the system may damage the
motherboard components, and hardware monitoring errors can
occur if you fail to plug this connector.

These are not jumpers! DO NOT place jumper caps on the fan
connectors.
User's Manual
EMX-QM57 23