Express-BD74
BIOS Setup
77
7.4.5.4. Chipset > PCH Configuration > USB Configuration
Feature
Options
Description
USB Precondition
Enabled
Disabled
Precondition work on USB host controller and root
ports for faster enumeration.
xHCI Mode
Smart Auto
Auto
Enabled
Disabled
Manual
Mode of operation of xHCI controller.
USB Ports Per-Port Disable
Control
Disabled
Enabled
Control each of the USB ports (0~13) disabling.
XHCI Idle L1
Enabled
Disabled
Enabled XHCI Idle L1. Disabled to workaround USB3
hot plug will fail after 1 hot plug removal. Please put
the system to G3 for the new settings to take effect.
7.4.5.5. Chipset > PCH Configuration > Networking
Feature
Options
Description
PCH Internal LAN
Enabled
Disabled
Enable/Disable PCH Internal LAN
PXE ROM
Enabled
Disabled
Enable/Disable PXE Option ROM execution for
onboard LAN.
EFI Network
Enabled
Disabled
Enable/Disable EFI Network support for onboard LAN.