User`s manual

3-14
MS-9643 Mainboard
PCI-E Compliancy Mode
This setting specifies the compliancy mode of the PCI-Express ports (1.0 or
1.0a).
Legacy Mode Support
Operating systems with "legacy support" can detect and use legacy
hardware. Legacy support is required in the BIOS for a USB keyboard or
USB mouse to operate in any of the MS-DOS mode phases.
USB Controller
This setting is used to enable/disable the onboard USB controller.
USB 2.0 Controller
This setting is used to enable/disable the onboard USB 2.0 controller.
USB Keyboard/Mouse Support
Set to [Enabled] if your need to use a USB-interfaced keyboard/mouse in the
operating system that does not support or have any USB driver installed,
such as DOS and SCO Unix.
Super IO Device
Onboard Serial Port 1 / 2
Select an address and corresponding interrupt for Serial Port 1/2.
Onboard Parallel Port
This setting specifies the I/O port address and IRQ of the onboard parallel
port.