IEI Integration IMBA-9454 v1.00 - Manual (Page 62)

IMBA-9454 Motherboard
Page 44
4.2.8 Fan Connectors
CN Label: FAN1, FAN2, FAN3
CN Type:
FAN1: 4-pin wafer connector
FAN1, FAN2: 3-pin wafer connector
CN Location: See Figure 4-9
CN Pinouts: See Table 4-10
The FAN1, FAN2 and FAN3 cooling fan connectors provide a 12V current to the cooling
fans. The connector has a "rotation" pin to get rotation signals from the fan and notify the
system so the system BIOS can recognize the fan speed. Please note that only certain
fans can issue the rotation signals.
FAN1
FAN2, FAN3
Figure 4-9: Fan Connectors Locations
PIN FAN1 FAN2, FAN3
1 GND GND
2 +12V +12V
3 Rotation Signal Rotation Signal
4 Control
Table 4-10: Fan Connectors Pinouts