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ASUS MAXIMUS V FORMULA Series
1-41
Chapter 1
7. CPU, chassis, and optional fan connectors
(4-pin CPU_FAN; 4-pin CPU_OPT; 4-pin CHA_FAN1-3; OPT_FAN1-3)
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 the CPU fan of maximum 1A (12 W) fan power.
• If you install two VGA cards, we recommend that you plug the rear chassis fan cable
to the motherboard connector labeled CHA_FAN1, CHA_FAN2, CHA_FAN3 for better
thermal environment.