CHAINTECH 6WIV0, Manual, Page: 17 / 29

Chapter 2
14
CPU/System Cooling Fan Connectors
(
FAN1/FAN2/FAN3)
These added connectors allow the fan to draw their
power from the mainboard instead of the disk drive
connector.
The board's management extension hardware is able to
detect the CPU and system fan speed in rpm (revolutions
per minute). These connectors supports 3-pin cooling
fans with minimum of 3500 RPM. The wiring and plug
may vary depending on the manufacturer. On standard
fans, the red is positive (+12V), the black is ground, and
the yellow wire is the rotation signal.
+
+
+
FAN3 FAN2
FAN1
FAN3 is an indepemdent power line that is not
control by system health monitor and power
management.
PS/2 Mouse and Keyboard Ports
If a PS/2 mouse is used, BIOS will automatically detect
and assign IRQ12 to the PS/2 mouse.
Poly-fuse Over Current Protection
The poly-fuse protects the system from dangerous voltages the system might be
exposed to via the keyboard or USB connectors. In case of such exposure, the poly-
fuse will immediately be disconnected from the circuit, just like a normal fuse. After
being disconnected for a certain period of time, the poly-fuse will return to its normal
state, after which the keyboard or USB can function properly again. Unlike
conventional fuses, the poly-fuse does not have to be replaced, relieving the user
wasted time and inconvenience.
+
+
+
Pin Definition
1 Data
2 No Connection
3 Ground
4 + 5V (fused)
5 Clock
6 No Connection