IBASE Technology ARRANDALE IB957, User Manual, Page: 39 / 72

BIOS SETUP
IB957 User’s Manual 35
USB Configuration
Aptio Setup Utility
Main
Advanced
Chipset Boot Security Save & Exit Event Logs
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
EHCI Hand-off Enabled
Device Reset Timeout 20 sec
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.
EHCI Hand-off
Enabled/Disabled. This is a workaround for Oses without EHCI hand-off
support. The EHCI ownership change should be claimed by EHCI driver.
Device Reset Timeout
USB mass storage device Start Unit command timeout.
Options are: 10 sec / 20 sec / 30 sec / 40 sec.