Asus E2938 Hardware User Manual page 55

7. CPU, chassis, power, and optional fan connectors
(4-pin CPU_FAN, 3-pin CHA_FAN1, 3-pin CHA_FAN2, 3-pin CHA_FAN3,
3-pin PWR_FAN, 3-pin OPT_FAN1~3)
The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.)
or a total of 1 A ~ 7 A (84 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!
®
COMMANDO
COMMANDO Fan connectors
• CPU_FAN, CHA_FAN1~3, and OPT_FAN 1~3 connectors support the
ASUS Q-FAN 2 feature.
• If you install two VGA cards, we recommend that you plug the rear chassis
fan cable to the motherboard connector labeled CHA_FAN2 for better
themal environment.
ASUS Commando
CPU_FAN
CPU_FAN
PWR_FAN
OPT_FAN1
CHA_FAN2
PWR_FAN
OPT_FAN3
Rotation
OPT_FAN2
CHA_FAN1 +12V
GND
CHA_FAN3
OPT_FAN1 CHA_FAN1
GND
+12V
Rotation
OPT_FAN2
CHA_FAN2
Rotation
+12V
GND
OPT_FAN3
CHA_FAN3
GND
+12V
Rotation
2-31