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3.3.5 USB Configuration
Aptio Setup Utility --- Copyright © 2011 American Megatrends, Inc.
Main
Advanced
Chipset Boot Security Save & Exit
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.
USB Configuration
USB Devices:
1 keyboard, 2 Hubs
Legacy USB Support
EHCI Hand-off
Port 60/64 Emulation
USB hardware delays and time-outs:
USB transfer time-out
Device reset time-out
Device power-up delay
[Enabled]
[Disabled]
[Enabled]
[20 sec]
[20 sec]
[Auto]
→←:
Select screen
↑↓:
Select item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit
Legacy USB Support
Enable 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.
Enabled /
Disabled / Auto
EHCI Hand-off
This is a workaround for OSes with EHCI hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
Disabled /
Enabled
Port 60/64 Emulation
Enable I/O port 60h/64h emulation support. This should be enabled for the
complete USB keyboard legacy support for non-USB aware OSes.
Enabled /
Disabled
USB transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers.
20 sec /
10 sec / 5 sec / 1 sec
Device reset time-out
USB mass storage device Start Unit command time-out.
20 sec /
10 sec / 30 sec / 40 sec
Содержание S5515
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