Usb ports configuration, Ehci controller 1/2 [enabled, Rear usb 1/ 2 [enabled – Asus Z9PA-U8 User Manual
Page 87: Device reset time-out [20 sec

ASUS Z9PA-U8
4-25
Enable/Disable (EHCI)
Support.
EHCI Controller 1
[Enabled]
EHCI Controller 2
[Enabled]
Rear USB #1
[Enabled]
Rear USB #2
[Enabled]
Onboard USB #3
[Enabled]
Onboard USB #4
[Enabled]
Onboard USB #5
[Enabled]
Onboard USB #6
[Enabled]
Onboard USB #10
[Enabled]
→←:
Select Screen
↑↓:
Select Item
Enter: Select Item
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save & Exit
ESC: Exit
USB Ports Configuration
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Advanced
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
EHCI Controller 1/2 [Enabled]
Allows you to enable or disable USB 2.0 (EHCI) Support. If we disable the EHCI
Controller in BIOS > South Bridge > USB configuration, the USB device will all
disable in OS.
Configuration options: [Disabled] [Enabled]
Rear USB 1/ 2 [Enabled]
Allows you to enable or disable rear USB ports.
Configuration options: [Disabled] [Enabled]
Onboard USB 3/ 4/ 5/ 6/ 10 [Enabled]
Allows you to enable or disable onboard USB ports.
Configuration options: [Disabled] [Enabled]
USB hardware delays and time-outs:
USB transfer time-out [20 sec]
This item sets 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]