Asus P5LD2-C IPAT User Manual - Page 78

Legacy USB Support [Auto], EHCI Hand-off [Enabled], Device Reset timeout [20 sec]

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4.5.3 Legacy USB Configuration The items in this menu allows you to change the USB-related features. Select an item then press to display the configuration options. Legacy USB Configuration Module Version USB Devices: None Legacy USB Support EHCI Hand-off Device Reset timeout 08.07.10 [Auto] [Enabled] [20 sec] Enables Legacy USB support.Auto options disables legacy support if no USB devices are connecteed. DISABLED option will keep USB devices available only for EFI appplications. The Module Version and USB Devices Enabled items show the auto-detected values. If no USB device is detected, the item shows None. Legacy USB Support [Auto] Allows you to enable or disable support for USB devices on legacy operating systems (OS). Setting to Auto allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled. Configuration options: [Disabled] [Enabled] [Auto] EHCI Hand-off [Enabled] Allows you to enabled or disable EHCI Hand-off. This is a workaround for OSes without EHCI hand-off suspport. The EHCI ownership change should be claimed by EHCI driver. Configuration options: [Disabled] [Enabled] Device Reset timeout [20 sec] Allows you to set the USB mass storage device start unit command timeout. Configuration options: [10 sec] [20 sec] [30 sec] [40 sec] 4-22 Chapter 4: BIOS setup

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4-22
Chapter 4: BIOS setup
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy operating
systems (OS). Setting to Auto allows the system to detect the presence of USB
devices at startup. If detected, the USB controller legacy mode is enabled. If no
USB device is detected, the legacy USB support is disabled.
Configuration options: [Disabled] [Enabled] [Auto]
EHCI Hand-off [Enabled]
Allows you to enabled or disable EHCI Hand-off. This is a workaround for OSes
without EHCI hand-off suspport. The EHCI ownership change should be claimed
by EHCI driver. Configuration options: [Disabled] [Enabled]
Device Reset timeout [20 sec]
Allows you to set the USB mass storage device start unit command timeout.
Configuration options: [10 sec] [20 sec] [30 sec] [40 sec]
The Module Version and USB Devices Enabled items show the
auto-detected values. If no USB device is detected, the item shows None.
4.5.3
Legacy USB Configuration
The items in this menu allows you to change the USB-related features. Select an
item then press <Enter> to display the configuration options.
Legacy USB Configuration
Module Version
08.07.10
USB Devices:
None
Legacy USB Support
[Auto]
EHCI Hand-off
[Enabled]
Device Reset timeout
[20 sec]
Enables Legacy USB
support.Auto options
disables legacy support
if no USB devices are
connecteed. DISABLED
option will keep USB
devices available only
for EFI appplications.