ASUS KN97-X User’s Manual
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III. INSTALLATION
9. Chassis Fan, CPU Cooling Fan, & Power Supply Fan Connectors (FANPWR)
These connectors support cooling fans of 500mAmp (6Watt) 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 consid-
eration the polarity of the this connector. NOTE: The “Rotation” signal is to
be used only by a specially designed fan with rotation signal.
WARNING: The CPU and/or motherboard will overheat if there is no air-
flow 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.
R
12Volt Chassis, CPU, Power Supply Fan Power
Chassis Fan Power
CPU Fan Power
Power Supply Fan
GND
Rotation
+12V
10. Chassis Open Alarm Lead (CHASSIS)
This lead is for an open chassis monitor. A high level signal to the CHASSIS
lead will indicate to the system that the chassis has been opened. The +5V lead
comes from the onboard button cell battery to retain its function even if the
power cord has been unplugged from the ATX power supply. Be sure that the
load on the +5V lead is minimal to prevent constant battery replacements.
R
Chassis open alarm lead
+5V
GND
CHASSIS
(Connectors)
III. INST
ALLA
TION
