IEI Integration SPCIE-5100DX - Manual (Page 36)

SPCIE-5100DX PICMG 1.3 CPU Card
Page 22
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