Czar PP-8300, User Manual

Page: 29 / 91

USB Configuration
Legacy USB Support
This item determines if the BIOS should provide legacy support for USB devices like the keyboard,
mouse, and USB drive. This is a useful feature when using such USB devices with operating systems
that do not natively support USB (e.g. Microsoft DOS or Windows NT). Options: Enabled (Default) /
Disabled / Auto
USB3.0 Support
This item enables or disables USB3.0 (XHCI) controller support.
Options: Enabled (Default) / Disabled
XHCI Hand-Off
This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
Options: Enabled (Default) / Disabled
EHCI Hand-Off
This is a workaround for OSes without EHCI hand-off support. The EHCI ownership change
should be claimed by EHCI driver.
Options: Disabled (Default) / Enabled
Port 60/64 Emulation
This item enables I/O port 60h/64h emulation support. This should be enabled for the complete USB
keyboard legacy support for non-USB aware OSes.
Options: Enabled (Default) / Disabled
28