Asus E500-PV - Manual (Page 36)

36 ASUS CUV4X User’s Manual
Connectors
3. H/W SETUP
3. HARDWARE SETUP
15) USB Headers (10-1 pin USB2) (optional)
If the USB port connectors on the back panel are inadequate, two USB headers
are available for two additional USB port connectors. Connect the USB headers
to an optional 2-port USB connector set and mount the bracket to an open slot
on your chassis.
CUV4X
CUV4X Front Panel USB Header
USBPORT
USB Power USBP2
–
USBP2+ GND NC
USB Power
USBP3
–
USBP3+
GND
1 5
6 10
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 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 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.
CUV4X
CUV4X 12-Volt Cooling Fan Power
PWR_FAN
CPU_FAN
CHA_FAN
GND
Rotation
+12V
GND
Rotation
+12V
GND
Rotation
+12V