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HP WMT-LX Manual
11)POWER (PWR_FAN), CPU (CPU_FAN), Fan Connectors (3 pins)
These connectors support cooling fans of 350mA (4.2 Watts) or less.
Orientate the fans so that the heat sink fins allow airflow to go across the
onboard heat sink(s) instead of the expansion slots. Depending on the
fan manufacturer, the wiring and plug may be different. The red wire
should be positive, while the black should be ground. Connect the fan’s
plug to the board taking into consideration the polarity of the connector.
NOTE: The “Rotation” signal is to be used only by a specially designed fan
with rotation signal. The Rotations per Minute (RPM) can monitored using
a utility such as HP PC Probe or Intel LDCM.
WARNING! The CPU and/or motherboard will overheat if there is no
airflow across the CPU and onboard heatsinks. Damage may occur to
the motherboard and/or the CPU fan if these pins are incorrectly used.
These are not jumpers, do not place jumper caps over these pins.
RJ-45
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WMT-LX
WMT-LX 12-Volt Cooling Fan Power
PWR_FAN
CPU_FAN
GND
Rotation
+12V
GND
Rotation
+12V
+001-023 WMT-LX.p65 copy 3/23/01, 9:32 AM18