45 ASMB-813I User Manual
Chapter 3 AMI BIOS
3.2.3.1 Processor Configuration
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.
DCU Streamer Prefetcher
Enable prefetch of next L1 data line based upon multiple loads in same cache
line.
DCU IP Prefetcher
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