Asus Blitz Extreme User Manual - Page 59
CPU, chassis, and optional fan connectors, pin CPU_FAN, 3-pin CHA_FAN1-4, 3-pin PWR_FAN
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7. CPU, chassis, and optional fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1-4, 3-pin PWR_FAN, 3‑pin OPT_FAN1-2) The fan connectors support cooling fans of 350 mA ~ 1000 mA (24 W max.) or a total of 1 A ~ 3.48 A (41.76 W max.) at +12V. Connect the fan cables to the fan connectors on the motherboard, making sure 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! ® GND +12V Rotation BLITZ EXTREME CPU_FAN PWR_FAN CHA_FAN4 CHA_FAN3 CHA_FAN1 OPT_FAN1 OPT_FAN2 CHA_FAN2 CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND CHA_FAN1 Rotation +12V GND CHA_FAN3 Rotation +12V GND OPT_FAN1 BLITZ EXTREME Fan connectors PWR_FAN Rotation +12V GND CHA_FAN2 Rotation +12V GND CHA_FAN4 Rotation +12V GND OPT_FAN2 Rotation +12V GND • If you install two VGA cards, we recommend that you plug the chassis fan cable to the motherboard connector labled CHA_FAN1 or CHA_FAN2 for better themal environment. • Only the CPU_FAN, CHA_FAN1-3 and OPT_FAN1-2 support ASUS Q-Fan feature. ASUS Blitz Extreme 2-33