User manual

41 PCA-6028 User Manual
Chapter 3 AMI BIOS Setup
 USB Configure
Enable/Disable USB configure function.
 PET Progress
User can Enable/Disable PET Events progress to receive PET events or note.
 WatchDog
Enable/Disable Watchdog Timer
3.2.2.9 USB Configuration
Figure 3.13 USB Configuration
 Legacy USB Support
This is for supporting USB devices under legacy OS such as DOS. When
choosing "AUTO", the system will automatically detect if any USB device is
plugged into the computer and enable USB legacy mode when a USB device is
plugged in, and disable USB legacy mode when no USB device is plugged in.
 USB3.0 support
Enable/Disable USB3.0 (XHCI) support
 XHCI Hand-off
This is a workaround for OS without XHCI hand-off support. The XHCI owner-
ship change should be claimed by XHCI driver.
 EHCI Hand-off
This is a workaround for OS without EHCI hand-off support. The EHCI owner-
ship change should be claimed by EHCI driver.
 USB Mass Storage Driver Support
Enable/Disable USB Mass Storage Driver Support
 USB transfer time-out
Allows you to select the USB transfer time-out value. [1,5,10,20sec]
 Device reset time-out
Allows you to select the USB device reset time-out value. [1,5,10,20sec]