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ASUS TX97-LE User’s Manual 27
III. INSTALLATION
(Connectors)
III. INSTALLATION
5. CPU Cooling Fan Connectors (FAN, 3 pins)
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. 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
Power Supply Fan
Chassis Fan Power
CPU Fan Power
Ground
Rotation
+12 Volt
Ground
Rotation
+12 Volt
6. Chassis Open Alarm Lead (CHASSIS, 4-1 pins)
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 (Power Supply Stand By)
Ground
Chassis Signal