Asus CUSL2 CUSL2 User Manual - Page 35

3. HARDWARE SETUP 11) IDE Activity LED (2-pin IDELED) 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. 3. H/W SETUP Connectors TIP: If the case-mounted LED does not light, try reversing the 2-pin plug. ® IDELED CUSL2 CUSL2 IDE Activity LED 12) Power Supply (PWR_FAN), CPU (CPU_FAN), Chassis (CHA_FAN) Fan Connectors (3 pins) 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 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 read directly from the ASUS iPanel or monitored using a utility such as ASUS PC Probe or Intel LDCM. 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. Rotation +12V GND CPU_FAN GND +12V Rotation PWR_FAN ® CUSL2 CUSL2 12-Volt Cooling Fan Power Rotation +12V GND CHA_FAN ASUS CUSL2 User's Manual 35