Asus Z9PH-D16 FDR Z9PH-D16 Series User Manual - Page 84

USB Configuration, Legacy USB Support [Enabled], EHCI Hand-off [Disabled]

Page 84 highlights

4.4.8 USB Configuration Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc. Advanced USB Configuration USB Devices: 1Keyboard, 1 Mouse, 3 Hubs Legacy USB Support EHCI Hand-off [Enabled] [Disabled] Enabled 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 Hardware Delays and Time-outs USB transfer time-out Device reset time-out Mass Storage Devices USB Ports Configuration [20 sec] [20 sec] →←: Select Screen ↑↓: Select Item Enter: Select Item +/-: Change Opt. F1: General Help F2: Previous Values F5: Optimized Defaults F10: Save & Exit ESC: Exit Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc. Legacy USB Support [Enabled] Enables or disables Legacy USB device support. Auto option disables legacy support if no USB devices are connected. DISABLE option will keep USB device available only for EFI applications. Configuration options: [Enabled] [Disabled] [Auto] EHCI Hand-off [Disabled] This is a workaround for 0ses without EHCI ownership change should be clained 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] 4-26 Chapter 4: BIOS setup

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4-26
Chapter 4: BIOS setup
4.4.8
USB Configuration
Legacy USB Support [Enabled]
Enables or disables Legacy USB device support. Auto option disables legacy
support if no USB devices are connected. DISABLE option will keep USB device
available only for EFI applications.
Configuration options: [Enabled] [Disabled] [Auto]
EHCI Hand-off [Disabled]
This is a workaround for 0ses without EHCI ownership change should be clained
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]
Enabled 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:
1Keyboard, 1 Mouse, 3 Hubs
Legacy USB Support
[Enabled]
EHCI Hand-off
[Disabled]
USB Hardware Delays and Time-outs
USB transfer time-out
[20 sec]
Device reset time-out
[20 sec]
Mass Storage Devices
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
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Advanced
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.