IBASE IB970 - Manual (Page 38)

BIOS SETUP
34 IB970 User’s Manual
Acoustic Management Configuration
Aptio Setup Utility
Main
Advanced
Chipset Boot Security Save & Exit
Acoustic Management Configuration
→ ←
Select Screen
↑↓ Select Item
Enter: Select
+- Change Field
F1: General Help
F2: Previous Values
F3: Optimized Default
F4: Save ESC: Exit
Acoustic Management Disabled
USB Configuration
Aptio Setup Utility
Main
Advanced
Chipset Boot Security Save & Exit
USB Configuration
→ ←
Select Screen
↑↓ Select Item
Enter: Select
+- Change Field
F1: General Help
F2: Previous Values
F3: Optimized Default
F4: Save ESC: Exit
USB Devices:
2 Hubs
Legacy USB Support Enabled
USB3.0 Support Enabled
XHCI Hand-off Enabled
EHCI Hand-off Enabled
Port 60/64 Emulation Enabled
USB hardware delays and time-outs:
USB Transfer time-out 20 sec
Device reset tine-out 20 sec
Device power-up delay Auto
Legacy USB Support
Enables Legacy USB support.
AUTO option disables legacy support if no USB devices are connected.
DISABLE option will keep USB devices available only for EFI
applications.
USB3.0 Support
Enable/Disable USB3.0 (XHCI) Controller support.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The
XHCI ownership change should be claimed by XHCI driver.