B75MU3+ UEFI BIOS Manual
10
Active Processor Cores
This item sets number of cores to enable in each processor package.
Options: All (Default) / 1 / 2 / 3
Limit CPUID Max imum
When the computer is booted up, the operating system executes the CPUID
instruction to identify the processor and its capabilities. Before it can do so, it must
first query the processor to find out the highest input value CPUID recognizes. This
determines the kind of basic information CPUID can provide the operating system.
Options: Disabled (Default) / Enabled
Execute-Disable Bit
XD can prevent certain classes of malicious buffer overflow attacks when combined
with a supporting OS (Windows Server 2003 SP1, Windows XP SP2, SuSE Linux
9.2, RedHat Enterp rise 3 Update 3.).
Options: Enabled (Default) / Disabled
Intel Virtualization Tech
Virtualization Techno logy c an virtually separate your system resource into several
parts, thus enhance the performance when running virtual machines or multi
interface systems.
Options: Disabled (Default) / Enabled
Hardware Prefetcher
The processor has a hardware prefetcher that automatically analyzes its requirements
and prefetches data and instructions from the memory into the Level 2 cache that are
likely to be required in the near future. This reduces the latency associated with
memory reads.
Options: Enabled (Default) / Disabled
Adjacent Cache Line Prefetch
The processor has a hardware adjac ent c ache line prefetch mechanis m that
automatically fetches an extra 64-byte cache line whenever the processor requests for
a 64-byte cac he line. This reduces cache latency by making the next c ac he line
immediately available if the processor requires it as well.
Options: Enabled (Default) / Disabled
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