.3 H/WConnectors SETUP

3.HARDWARE SETUP

6)CPU and Chassis Fan Connectors

The two 3-pin fan connectors (CPU_FAN, CHA_FAN) support cooling fans of 350mA (4.2 Watts) or less. Orient the fans so that the heat sink fins allow airflow to go across the onboard heat sink(s) instead of the expansion slots. The fan wiring and plug may vary depending on the fan manufacturer. The red wire should be positive while the black should be ground. Connect the fan plug to the board taking into consideration the polarity of the connector.

NOTE: Use the “Rotation” signal only with a specially designed fan with a rotation signal. The Rotations Per Minute (RPM) can be monitored using ASUS PC Probe (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.

CPU_FAN

Rotation

+12V

GND

CUV4X-C

CHA_FAN

GND

+12V

Rotation

CUV4X-C 12-Volt Cooling Fan Power

7)USB Header (10-1 pin USBPORT) (optional)

If the USB port connectors on the back panel are inadequate, one USB header is available for two additional USB port connectors. Connect the USB header to a 2-port USB connector set and mount the bracket to an open slot on the chassis. (The USB connector set does not come with the motherboard package.)

USBPORT

 

USBP3+ GND

–USBP3

Power USB

CUV4X-C

10

 

6

 

5

 

1

 

USBP2+ GND NC

–USBP2

Power USB

CUV4X-C Front Panel USB Header

34

ASUS CUV4X-C User’s Manual