6.
CPU and chassis fan connectors (4-pin CPU_FAN, 4-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.
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 1A (12 W) fan power.
Only the 4-pin CPU fan supports the ASUS Fan Xpert 2 feature.
CHA_FAN
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
+5V
CHA FAN IN
CHA FAN PWR
GND
H81M-C R2.0
H81M-C R2.0 Fan connectors
1-18
Chapter 1: Product introduction