Asus CUC2000 CUC2000 User Manual - Page 37
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3. HARDWARE SETUP 13) 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 CUC2000 ® TIP: If the case-mounted LED does not light, try reversing the 2-pin plug. IDELED CUC2000 IDE Activity LED 14) Power Supply, CPU, Chassis Fan Connectors (3-pin PWR_FAN, CPU_FAN1, 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 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 (see 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. GND +12V CPU_FAN1 Rotation CUC2000 ® Rotation +12V GND PWR_FAN CHA_FAN Rotation +12V GND CUC2000 12-Volt Cooling Fan Power ASUS CUC2000 User's Manual 37