3.HARDWARE SETUP

8)IDE Device Activity LED (2-pin IDELED)

This connector supplies power to the cabinet’s IDE device activity LED. Read and write activity by devices connected to the Primary or Secondary IDE con- nectors will cause the LED to light up.

TIP: If the case-mounted LED does not light, try reversing the 2-pin plug.

F-P3B

IDELED

P3B-F IDE Activity LED

9)Chassis, Power Supply, CPU Fan Connectors (3-pin CHA_,PWR_,CPU_FAN) These connectors support cooling fans of 500mA (6W) 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 be monitored using ASUS PC Probe Utility or Intel LDCM Utility (see 6. Software Reference).

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.

 

 

Power Supply Fan

 

Rotation +12V

GND

 

 

CPU Fan Power

-F

Rotation +12V

GND

P3B

 

 

 

 

Chassis Fan Power

 

Rotation +12V

GND

P3B-F 12Volt Cooling Fan Power

H/W SETUP

Connectors

3.

 

 

 

ASUS P3B-F User’s Manual

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