ALLATION INST .III

Connectors

III.INSTALLATION

13.CPU Cooling Fan Connectors (FAN, 3 pins)

These connectors support 3-pin cooling fans of 500mA (6W) or less with a mini- mum of 3,500RPM. Orientate the fans so that the heatsink fins allow airflow to go across the onboard heatsink(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 “Ro- tation” signal is to be used only by a specially designed fan with rotation signal. The Rotations per Minute (RPM) can be monitored using ASUS PC Probe Utility or Intel LDCM Utility.

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.

GND +12V Rotation

 

Power Supply Fan

 

Rotation

 

+12V

 

GND

 

CPU Fan Power

 

Rotation +12V GND

P5A 12Volt Cooling Fan Power

Chassis Fan Power

14.IrDA-Compliant Infrared Module Connector (IR, 5-pin block)

This connector supports the optional wireless transmitting and receiving infra- red module. This module mounts to a small opening on system cases that sup- port this feature. You must also configure the setting through UART2 Use Infra- red in Chipset Features Setup to select whether UART2 is directed for use with COM2 or IrDA. Use the five pins as shown below (Back View) and con- nect a ribbon cable from the module to the motherboard according to the pin definitions.

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ASUS P5A User’s Manual