Chapter 4: AMI BIOS
4-9
Demand Scrubbing
This is a memory error-correction scheme in which the Processor writes cor-
rected data back into the memory block from where it was read by the Processor.
The options are Enabled and
Disabled
.
Patrol Scrubbing
This 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 power consumption using auto-
matic voltage control during CPU idle states. The options are
Enabled
and
Disabled.
North Bridge Confi guration
This feature allows the user to confi gure Intel IOH settings.
Intel I/OAT
The Intel I/OAT (I/O Acceleration Technology) signifi cantly reduces CPU overhead
by leveraging CPU architectural improvements, freeing up resources for other 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 to shorten execution
cycles and maximize data processing effi ciency. Prefetching too frequently can satu-
rate the cache directory and delay necessary cache access. This feature reduces
or increases the frequency the system prefetches data. The options are [8], [16],
[24],
[32]
, [40], [48], [56], [64], [72], [80], [88], [96], [104], [112], [120].
IOH PCI-e Max. Payload Size
Some add-on cards perform faster when the payload size is limited to 128 Bytes;
while others, with a payload size of 256 Bytes. Please refer to your add-on card
user guide for the desired setting. The options are
256 Bytes
and 128 Bytes.
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,
Summary of Contents for X8DA6
Page 1: ...X8DA6 USER S MANUAL Revision 1 0b X8DAE...
Page 5: ...Preface v Notes...
Page 86: ...A 2 X8DA6 X8DAE User s Manual Notes...
