Advantech ASMB-823I User Manual page 60

Per-Socket Configuration

Use this to select how many processor cores you want to activate when you are
using a dual or quad core processor.
 Hyper-threading
Enable or disable Intel Hyper Threading technology.
 Execute Disable Bit
This item specifies the Execute Disable Bit Feature. The settings are Enabled
and Disabled. The Optimal and Fail-Safe default setting is Enabled. If Disabled
is selected, the BIOS forces the XD feature flag to always return to 0.
 VMX
Enable or disable Intel Virtual Machine Extensions (VMX) for IA-32 processors
that support Intel® Vanderpool Technology
 SMX
Enable or disable the Safer Mode Extensions. Safer Mode Extensions (SMX)
provide a means for system software to launch an MLE and establish a mea-
sured environment within the platform to support trust decisions by end users.
 Hardware Prefetcher
Hardware Prefetcher is a technique that fetches instructions and/or data from
memory into the CPU cache memory well before the CPU needs it, so that it can
improve the load-to-use latency. You may choose to enable or disable it.
 Adjacent Cache Line Prefetch
The Adjacent Cache-Line Prefetch mechanism, like automatic hardware
prefetch, operates without programmer intervention. When enabled through the
BIOS, two 64-byte cache lines are fetched into a 128-byte sector, regardless of
whether the additional cache line has been requested or not. You may choose to
enable or disable it.
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