ADLINK IMB-M42H - Manual (Page 25)

Getting Started 15
IMB-M42H
CPU Fan Connectors (4-pin CPU_FAN1)
Both 4-Pin (Quiet Fan) and 3-Pin CPU fan support are available,
with or without fan speed control function. For 3-Pin CPU fan con-
nection, use Pins 1-3, as shown.
Table 2-1: CPU Fan Connection Options
System Fan Connectors
Connect the CPU fan cable to
the connector and match the
black wire to the ground pin.
4-Pin Connection (CPU_FAN1) 3-Pin Connection (CPU_FAN2)
4 1
FAN_SPEED_CONTROL
CPU_FAN_SPEED
+12V
GND
CPU_FAN_SPEED
+12V
GND
X