Figure 3.9 Cpu Configuration - Advantech AIMB-784 User Manual

3.2.2.5 CPU Configuration
Active Processor Core

Use this item to select the number of processor cores you want to activate when
you are using a dual or quad core processor.
 Overclocking lock
Enable or Disable the overclocking lock function.
 Limit CPUID Maximum
Setting this item to [Enable] allows legacy operating systems to boot even with-
out support for CPUs with extended CPUID functions.
 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.
 Intel Virtualization Technology
This feature is used to "Enable or Disable" the Intel Virtualization Technology
(IVT) extension. It allows multiple operating systems to run simultaneously on
the same system by creating virtual machines, each running its own x86 operat-
ing system.
 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 to improve
the load-to-use latency. You may choose to "Enable or Disable" it.
AIMB-784 User Manual

Figure 3.9 CPU Configuration

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