IEI Integration IMBA-XQ354 v1.00 - Manual (Page 60)

IMBA-XQ354 Motherboard
Page 40
Figure 4-7: CPU Fan Connector Location
PIN NO. DESCRIPTION
1 GND
2 +12 VCC
3 Rotation Signal
4 Control
Table 4-8: CPU Fan Connector Pinouts
4.2.7 System Fan Connectors
CN Label: SYS_FAN1, SYS_FAN2
CN Type: 3-pin header
CN Location: See
877H877H
Figure 4-8
CN Pinouts: See
878H878H
Table 4-9
The cooling fan connector provides a 12 V, 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.