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board to use two areas of memory to run the same set of operations in parallel.
Select Sparing for a preset threshold of correctable errors to be used to trigger
fail-over. The spare memory is put online and used as active memory in place
of the failed memory. This option is supported by Intel 5600 Series processors
only. The options are Independent, Channel Mirroring, and Lockstep.
Demand Scrubbing
This is a memory error-correction scheme which will allow the processor to write
correct 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 working in the background looking for
and correcting resident errors. The options are Enabled and Disabled.
Throttling - Closed Loop
Throttling improves CPU's reliability and power efficiency via automatic voltage
control during idle states. The options are Enabled and Disabled.
North Bridge Configuration
This feature allows the user to configure the settings for the North Bridge chip.
Intel I/OAT
The Intel I/OAT (I/O Acceleration Technology) significantly 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 efficiency. 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 efficiency. 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.
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Chapter 4: AMI BIOS
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