Asus Maximus IV Extreme User Manual page 67

7. CPU, chassis, and power fan connectors
(4-pin CPU_FAN; 4-pin CHA_FAN1/2/3; 4-pin PWR_FAN;
4-pin OPT_FAN1/2/3)
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. 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 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.
ASUS Maximus IV Extreme 2-35