IEI Integration IMB-Q354 v1.00 - Manual (Page 79)

IMB-Q354 uATX Motherboard
Page 57
4.2.6 Fan Connector, System (+12V, 3-pin)
CN Label: SYS_FAN1
CN Type: 3-pin header (1x3)
CN Location: See Figure 4-7
CN Pinouts: See Table 4-8
The system cooling fan connector provides a 12V, 500mA current to a system cooling fan.
The connector has a "rotation" pin to get rotation signals from fans and notify the system
so the system BIOS can recognize the fan speed. Please note that only specified fans can
issue the rotation signals.
Figure 4-7: +12V Fan Connector Location
PIN NO. DESCRIPTION
1 GND
2 +12V
3 Rotation Signal
Table 4-8: +12V Fan Connector Pinouts