IBM BDM-610000049 - Manual (Page 64)

54 CMX158886 cpuModule BDM-610000049 Rev G
Fan Power, Switched (CN15)
The switched fan power connector (CN15) is an optional fan connector which allows the system to power the
fan only when the processor temperature reaches high temperatures.
To utilize this connector, refer to the Thermal Management section on page 72.
Table 38 Fan Power, Switched (CN15)
Pin Signal Function
1 CPU_FAN_PWM +5 Volts DC, switched
2 GND Ground