Viglen Vig644M Manual page 12

Universal Serial Bus (USB)
The motherboard supports up to ten USB 2.0 ports. The port arrangement is a follows:
 Four USB 2.0 ports are implemented with stacked back panel connectors (black)
 Six USB 2.0 front panel ports are implemented through three dual-port internal
headers
All 10 USB ports are high-speed, full-speed, and low-speed capable.
NOTE: Computer systems that have an unshielded cable attached to a USB port may
not meet FCC Class B requirements, even if no device or a low-speed (sub-channel)
USB device is attached to the cable. Use shielded cable that meets the requirements for
high-speed (fully rated) devices.
SATA Support
The board provides four 3 Gb/s SATA connectors, which support one device per
connector.
NOTE: By default the SATA mode is set to AHCI in the BIOS to improve system
performance. During Microsoft Windows XP installation, you must press F6 to install the
AHCI drivers. Both Microsoft Windows Vista and Microsoft Windows 7 include the
necessary RAID drivers for both AHCI and RAID without the need to install separate
RAID drivers using the F6 switch in the operating system installation process. It is
advised to install the latest AHCI drivers to improve system performance.
Expansion Slots
The motherboard provides the following expansion capability:
 One PCI Express 2.0 x1 interface
Legacy I/O Controller
The Legacy I/O Controller provides the following features:
 One serial port header
 One parallel port header (with Extended Capabilities Port (ECP) and Enhanced
Parallel Port (EPP) support
 PS/2-style keyboard/mouse interface on the back panel
 Serial IRQ interface compatible with serialized IRQ support for PCI Conventional bus
systems
 Intelligent power management, including a programmable wake-up event interface
 Conventional PCI bus power management support
The BIOS Setup program provides configuration options for the Legacy I/O controller.
V1.0 Vig644M Motherboard Manual
11