3.HARDWARE SETUP

12)IDE Activity LED (2-pin IDE)

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

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

K7M

IDELED

K7M IDE Activity LED

13)Power Supply, CPU, Chassis Fan Connectors (3-pin PWR_FAN, CPU_, CHA_FAN)

These connectors support cooling fans of 350mA (4.2 Watts) 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 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 (see section 6. SOFTWARE REFERENCE) or Intel LDCM Utility.

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

GND +12V Rotation

CPU Fan Power

K7M

Rotation +12V GND

Chassis Fan Power

GND

+12V

Rotation

K7M 12-Volt Cooling Fan Power

H/W SETUP

Connectors

3.

 

 

 

ASUS K7M User’s Manual

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