IEI Integration PCISA-PV-D4251_N4551_D5251 - Manual (Page 35)

PCISA-PV-D4251/N4551/D5251 CPU Card
Page 22
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 +5 V
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 3-8: DIO Connector Pinouts
3.2.6 Fan Connector
CN Label: CPU_FAN1
CN Type: 4-pin wafer connector (1x4)
CN Location: See Figure 3-7
CN Pinouts: See Table 3-9
The 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.
Figure 3-7: Fan Connector Locations