User`s manual

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X8DTL-6/X8DTL-6F/X8DTL-L/X8DTL-6L User's Manual
Demand Scrubbing
It is a memory error-correction scheme that will allow the processor to write cor-
rected data back into the memory block from where it was read by the processor.
The options are Enabled and Disabled.
Patrol Scrubbing
It is a memory error-correction scheme that works in the background looking for
and correcting resident errors. The options are Enabled and Disabled.
Throttling - Closed Loop
Throttling improves reliability and reduces CPU power consumption by auto-
matic voltage control during CPU idle states. The options are Enabled and
Disabled.
NorthBridge Chipset Confi guration
This feature allows the user to confi gure North Bridge settings. The items included
in the submenu are listed below.
NB Revision
• : This item displays North Bridge revision number.
Intel I/OAT
The Intel I/OAT (I/O Acceleration Technology) signifi cantly reduces CPU overhead
by leveraging CPU architectural improvements, freeing up resources to be used by
tasks. The options are Disabled and Enabled.
DCA Technology (Available when Intel I/OAT is enabled)
Select Enabled to use Intel's DCA (Direct Cache Access) Technology to enhance
data transfer effi ciency. The options are Enabled and Disabled.
DCA Prefetch Delay
A DCA Prefetch is used with TOE components to prefetch data in order to shorten
execution cycles and maximize data processing effi ciency. Prefetching too fre-
quently can saturate the cache directory and delay necessary cache accesses. This
feature reduces or increases the frequency the system prefetches data to optimize
system performance. The options are [8], [16], [24], [32], [40], [48], [56], [64], [72],
[80], [88], [96], [104], [112], [120].
Intel VT-d
Select Enabled to enable Intel's Virtualization Technology support for Direct I/O VT-d
by reporting the I/O device assignments to VMM through the DMAR ACPI Tables.
This feature offers fully-protected I/O resource-sharing across the Intel platforms,