Supermicro FatTwin F628G3-FT+, User Manual

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Chapter 7: BIOS
7-7
DCU (Data Cache Unit) Streamer Prefetcher (Available when supported by
the CPU)
If set to Enable, the DCU Streamer prefetcher will prefetch data streams from the
cache memory to the DCU (Data Cache Unit) to speed up data accessing and
processing to enhance CPU performance. The options are Disable and Enable .
DCU IP Prefetcher
If set to Enable, the IP prefetcher in the DCU (Data Cache Unit) will prefetch IP
addresses to improve network connectivity and system performance. The options
are Enable and Disable.
Direct Cache Access (DCA)
Select Enable to use Intel DCA (Direct Cache Access) Technology to improve the
effi ciency of data transferring and accessing. The options are Auto , Enable, and
Disable.
X2 APIC (Advanced Programmable Interrupt Controller)
Based on Intel's Hyper-Threading architecture, each logical processor (thread)
is assigned 256 APIC IDs (APIDs) in 8-bit bandwidth. When this feature is set to
Enable, the APIC ID will expand(X2) from 8 bits to 16 bits to provide 512 APIDs
to each thread for CPU performance enhancement. The options are Disable and
Enable.
AES-NI
Select Enable to use the Intel Advanced Encryption Standard (AES) New Instructions
(NI) to ensure data security. The options are Enable and Disable.
Intel Virtualization Technology
Select Enable to use Intel Virtualization Technology support for Direct I/O VT-d
support by reporting the I/O device assignments to the VMM (Virtual Machine
Monitor) through the DMAR ACPI tables. This feature offers fully-protected I/O
resource sharing across Intel platforms, providing greater reliability, security and
availability in networking and data-sharing. The options are Enable and Disable.