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X10SRi-F User’s Manual
DCA Prefetch Delay
A DCA prefetcher is used with a TOE (TCP/IP Ofoad Engine) adapter to prefetch
data to shorten execution cycles and to maximize data processing efciency.
Prefetching data too frequently can saturate the cache directory and delay neces-
sary cache access. This feature reduces or increases the frequency of system data
prefetching activities. The options are Disable, [8], [16], [32], [40], [48], [56], [64],
[72], [80], [88], [96], [104], and [112].
X2APIC (Extended Advanced Programmable Interrupt Controller)
Based on the Intel Hyper-Threading technology, each logical processor (thread) is
assigned 256 APIC IDs (APIDs) in 8-bit bandwidth. When this item is set to En-
able, the APIC ID will be expanded from 8 bits to 16 bits to provide 512 APIDs to
each thread to enhance CPU performance. The options are Disable and Enable.
AES-NI
Select Enable to use the Intel Advanced Encryption Standard (AES) New Instruc-
tions (NI) to ensure data security. The options are Enable and Disable.
Intel Virtualization Technology
Select Enable to use Intel Virtualization Technology so that I/O device assignments
will be reported directly to the VMM (Virtual Memory Management) through the
DMAR ACPI Tables. This feature offers fully-protected I/O resource-sharing across
the Intel platforms, providing the user with greater reliability, security and availability
in networking and data-sharing. The settings are Enable and Disable.
Advanced Power Management Conguration
Power Technology
Select Energy Efcient to support power-saving mode. Select Custom to custom-
ize system power settings. Select Disabled to disable power-saving settings. The
options are Disable, Energy Efcient, and Custom.
Cong TDP
Select Enable to allow the user to congure the Thermal Design Power (TDP)
settings for the system. The TDP refers to the maximum amount of power al-
lowed for running "real applications" without triggering an overheating event. The
options are Disable and Enable.