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4-8

X10SRi-F User’s Manual

DCU (Data Cache Unit) Mode

Use this item to set the DCU data-prefecting mode. The options are 32KB 8Way

Without ECC and 16KB 4Way With ECC.

Direct Cache Access (DCA)

Select Enable to use Intel DCA (Direct Cache Access) Technology to maximize ef-

ciency in memory data transferring and accessing. The options are Auto, Enable

and Disable.

DCA Prefetch Delay

A DCA prefetcher is used with a TOE (TCP/IP Ofoad Engine) adapter to prefetch

data to shorten execution cycles and to maximize data processing efciency.

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 Conguration

Power Technology

Select Energy Efcient 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 Efcient, and Custom.

Supero X10SRi-F User Manual

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