Com2 Com 2 Header; Usb1 Usb 0/1 Ports; Cpu/System/Chip Cooling Fan Connectors - CHAINTECH 7AIV6 Manual

Chapter 2
COM 2 Header (COM2)
USB 0/1 Ports (USB1)

CPU/System/Chip Cooling Fan Connectors

FAN2 FAN3
FAN1/ FAN2
18
Use the optional serial port cable enclosed with
your mainboard. Plug into the header and attached
the other end with the bracket to the system case
back panel.
If you want to use a USB keyboard, you must enable
the onchip USB & USB keyboard support function
in BIOS's Integrated Peripherals menu (See Section
3-4). USB is an open industry standard, providing
a simple and inexpensive way to connect up to 125
devices to a single computer port. Keyboards, mice,
tablets, digitizers, scanners, bar-code readers,
modems, printers and many more can all be used at
the same time.
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
4000 RPM. The wiring and plug may vary
depending on the manufacturer. On standard fans,
the red is positive (+12V), the black is ground,
FAN1
=nd the yellow wire is the rotation signal.
FAN3 (Chip fan) is an independent power
line that is not control by system health
monitor and power management.
FAN1/FAN2/FAN3)
(