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Chapter 1: Product introduction
3. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CPU_OPT; CHA_FAN1,
CHA_FAN2, CHA_FAN3, CHA_FAN4)
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. Insufcient air ow
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 1 A (12 W) fan power.
• 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 CPU_FAN connector and CHA_FAN connectors support the ASUS FAN Xpert 3
feature.
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