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28 ASUS TX97-E User’s Manual
III. INSTALLATION
5. CPU Cooling Fan Connector (FAN)
This connector supports a 3-pin CPU cooling fan of 500mAMP (6WATT) or
less with a minimum of 3,500RPM. Depending on the fan manufacturer, the
wiring and plug may be different. The red wire should be Positive, the black
should be Ground, and the yellow wire should be Rotation signal.
WARNING: The CPU and/or motherboard will overheat if there is no airflow
across the CPU and onboard heatsinks. Damage may occur to the mother-
board and/or the CPU fan if these pins are incorrectly used. These are not
jumpers, do not place jumper caps over these pins.
12Volt Chassis, CPU, Power Supply Fan Power
Orientate the fins so that air flow
runs across motherboard's heatsinks.
Power Supply Fan
Air Flow
Air Flow
Chassis Fan Power
CPU Fan Power
Ground
Rotation
+12 Vlot
Ground
Rotation
+12 Vlot
R
6. 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.
R
Chassis open alarm lead
+5Volt Stand By
Ground
CHASSIS
(Connectors)
III. INSTALLATION