Asus PRIME Z270-AR Series Manual page 34

5. CPU, CPU optional, high amp, extension, and chassis fan connectors (4-pin
CPU_FAN; 4-pin CPU_OPT; 4-pin H_AMP_FAN; 5-pin EXT_FAN; 4-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.
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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!
Ensure that the CPU fan cable is securely installed to the CPU fan connector.
The CPU_FAN connector supports the CPU fan of maximum 1A (12 W) fan power.
The EXT_FAN connector supports 2 of 5 thermal sensor sources.
For better Q-Fan functions, we recommend using 4-pin PWM fans when you connect
powerful fans (1A or above) onto the H_AMP_FAN connector.
Ensure to disable Q-Fan functions if you want to connect powerful 3-pin DC fans (1A
or above) onto the H_AMP_FAN connector.
Connect the fan of your water cooling kit to the AIO_PUMP connector.
Chapter 1: Product Introduction