IEI Integration IMB-Q354 v1.20 - Manual (Page 34)

IMB-Q354 microATX Motherboard
Page 20
Figure 3-4: DIO Connector Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 Ground 2 VCC
3 Output 3 4 Output 2
5 Output 1 6 Output 0
7 Input 3 8 Input 2
9 Input 1 10 Input 0
Table 3-5: DIO Connector Pinouts
3.2.4 Fan Connector, CPU (12V, 4-pin)
CN Label: CPU_FAN1
CN Type: 4-pin wafer (1x4)
CN Location: See Figure 3-5
CN Pinouts: See Table 3-6
The CPU cooling fan connector provides a 12V, 500mA current to a CPU 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.