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Patrol Scrub Interval
This feature allows you to decide how many hours the system should wait before the next
complete patrol scrub is performed. Use the keyboard to enter a value from 0-24. The
Default setting is 24.
Demand Scrub
Demand Scrubbing is a process that allows the CPU to correct correctable memory errors
found on a memory module. When the CPU or I/O issues a demand-read command, and
the read data from memory turns out to be a correctable error, the error is corrected and
sent to the requestor (the original source). Memory is updated as well. Select Enable to
use Demand Scrubbing for ECC memory correction. The options are Enable and Disable.
Device Tagging
Select Enable to support device tagging. The options are Disable and Enable.
South Bridge Configuration
The following South Bridge information will display:
USB Configuration
•
USB Module Version
•
USB Devices
Legacy USB Support
Select Enabled to support onboard legacy USB devices. Select Auto to disable legacy support
when there are no legacy USB devices present. Select Disabled to have all USB devices
available for EFI applications only. The options are Enabled, Disabled and Auto.
XHCI Hand-Off
This is a work-around solution for operating systems that do not support XHCI (Extensible
Host Controller Interface) hand-off. The XHCI ownership change should be claimed by the
XHCI driver. The settings are Enabled and Disabled.
EHCI Hand-Off
This item is for operating systems that do not support Enhanced Host Controller Interface
(EHCI) hand-off. When this item is enabled, EHCI ownership change will be claimed by the
EHCI driver. The settings are Enabled and Disabled.
Port 60/64 Emulation
Select Enabled to support I/O port 60h/64h emulation, which will provide complete legacy
USB keyboard support for the operating systems that do not support legacy USB devices.
The options are Disabled and Enabled.
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Chapter 6: BIOS
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