2 cooling fan connectors ( cpu), Figure 3-3: +12v fan connector location, Table 3-4: cpu fan connector pinouts – IEI Integration SPCIE-5100DX User Manual

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SPCIE-5100DX PICMG 1.3 CPU Card

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3.2.2 Cooling Fan Connectors ( CPU)

CN Label:

CPU_FAN1 and CPU_FAN2

CN Type:

4-pin header (1x4)

CN Location:

See Figure 3-3

CN Pinouts:

See Table 3-4

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.

Figure 3-3: +12V Fan Connector Location

PIN NO.

DESCRIPTION

1 GND

2 +12V

3 Rotation

Signal

4 Control

Table 3-4: CPU Fan Connector Pinouts