BIOS Advanced Menu Selections
Setup Options Options Defaults Description
Balanced Performance
Balanced Energy
Energy Efficiency
Uncore Frequency Scaling Enabled/Disabled Disabled Enable/disable Uncore
Frequency Scaling (USF).
CPU Power Limit Enabled/Disabled Disabled Enable/disable CPU power limit.
BIOS Advanced Menu USB Ports Options
The following table lists the BIOS Advanced Menu USB Ports options.
Setup Options Options Defaults Description
EHCI Hand-off Disabled/Enabled Disabled Enable or disable Enhanced
Host Controller Interface
(EHCI) hand-off support. This
is a workaround for operating
systems without EHCI hand-off
support. The EHCI change of
ownership should be claimed by
the EHCI driver.
Port 60/64 Emulation Disabled/Enabled Enabled Enable I/O port 60h/64h
emulation support. Enable
this setting for the complete
USB keyboard legacy support
for non-USB aware operating
systems.
Rear Port Disabled/Enabled Enabled Enable or disable USB Rear
Port.
Internal Port #0 Disabled/Enabled Enabled Enable or disable USB Internal
Port 0.
BIOS Advanced Menu Error Injection Settings
Option
The following table describes the BIOS Advanced Menu error injection settings option.
BIOS Setup Utility Menu Options 273