Asus M4A89TD PRO/USB3 User Manual - Page 49
CPU, chassis, and power fan connectors, pin CPU_FAN; 4-pin CHA_FAN1; 3-pin CHA_FAN2; 3-pin PWR_FAN - cpu support
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Page 49 highlights
Chapter 2 6. CPU, chassis, and power fan connectors (4-pin CPU_FAN; 4-pin CHA_FAN1; 3-pin CHA_FAN2; 3-pin PWR_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 the CPU fan of maximum 2A (24 W) fan power. • Only the CPU_FAN, CHA_FAN1 and CHA_FAN2 connectors support the ASUS Fan Xpert feature. • If you install two VGA cards, we recommend that you plug the rear chassis fan cable to the motherboard connector labeled CHA_FAN1 or CHA_FAN2 for better thermal environment. ASUS M4A89TD PRO Series 2-31
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