Winmate IA71, User Manual

Page: 19 / 100

IA71 Motherboard User Manual V1.0
9
The Motherboards supports up to eight USB 2.0 ports (two ports routed to the
front side of the box; four ports routed to the rear side of the box; and there are
additional two internal USB 2.0 pin headers on the Motherboard). The USB 2.0
ports are backward compatible with USB 1.1 devices. USB 1.1 devices will function
normally at USB 1.1 speeds. USB 2.0 support requires both an operating system
and drivers that fully support USB 2.0 transfer rates. Disabling Hi-Speed USB in
the BIOS revert all USB 2.0 ports to USB 1.1 operation. This may be required to
accommodate operating systems that do not support USB 2.0.
Eight USB devices (four with pin headers) may be connected to the system
through an adapter cable. Various adapters may come with the USB ports. USB
usually connect the external system to the Motherboard’s internal system. The
USB ports support hot plug-in connection function. However, you should install
the device driver program before you use the device.
NOTE
Computer systems that have an unshielded cable attached to a USB port might not
meet FCC Class B requirements, even if no device or a low-speed USB device is
attached to the cable. Use a shielded cable that meets the requirements for a
full-speed USB device.
2.3.7. Audio Jack ( Pin-header)
The Audio 5.1 channel capabilities are provided by a Realtek ALC655 chipset
which supporting digital audio outputs. The audio interface includes Mic-in,
Line-in and Line-out.
NOTE
The audio line out connector where located on rear side of the box is
designed to power headphones or amplified speakers only. Poor audio quality
occurs if passive (non-amplified) speakers are connected to this output.