4.4.9USB Configuration

Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.

Advanced

USB Configuration

 

Enabled Legacy USB support.

 

 

Auto

option disables legacy

USB Devices:

 

support if no USB devices

3Drivers, 1Keyboard, 1 Mouse, 3 Hubs

are connected. DISABLE

 

 

option will keep USB devices

Legacy USB Support

[Enabled]

available only for EFI

EHCI Hand-off

[Disabled]

applications.

USB hardware delays and time-outs

 

 

 

USB transfer time-out

[20 sec]

 

 

Device reset time-out

[20 sec]

 

 

USB Ports Configuration

 

 

 

 

 

→←: Select Screen

 

 

↑↓:

Select Item

 

 

Enter: Select Item

 

 

+/-: Change Opt.

 

 

F1: General Help

 

 

F2: Previous Values

 

 

F5: Optimized Defaults

 

 

F10: Save & Exit

 

 

ESC: Exit

 

 

 

 

Version 2.15.1219. Copyright (C) 2011 American Megatrends, Inc.

Legacy USB Support [Enabled]

Allows you to enable or disable Legacy USB device support.

Configuration options: [Enabled] [Disabled] [Auto]

EHCI Hand-off [Disabled]

This is a workaround for 0ses without EHCI. Ownership change should be claimed by EHCI driver.

Configuration options: [Disabled] [Enabled]

USB hardware delays and time-outs

USB transfer time-out [20 sec]

The time-out value for control, bulk, and interrupt transfer.

Configuration options: [1 sec] [5 sec] [10 sec] [20 sec]

Device reset time-out [20 sec]

USB mass storage device start unit command time-out.

Configuration options: [10 sec] [20 sec] [30 sec] [40 sec]

4-28

Chapter 4: BIOS setup