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L3 Cache
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L4 Cache
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VMX
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SMX/TXT
SW Guard Extentions (SGX)
Use this feature to enable or disable Intel Software Guard Extensions (SGX). SGX is a set
of CPU instructions that increases software security. The options are Software Controlled,
Enabled, and Disabled.
Select Owner EPOCH input type
Use this feature to select an Intel Software Guard Extensions EPOCH mode. Each mode
has different values, which can be entered manually. The options are No Change in Owner
EPOCHs, Change to New Random Owner EPOCHs, and Manual User Defined Owner
EPOCHs.
PRMRR Size
The BIOS must reserve a contiguous region of Processor Reserved Memory (PRM) in the
Processor Reserved Memory Range Register (PRMRR). This feature appears if SW Guard
Extensions is set to Enabled. The options are INVALID PRMRR, 32MB, 64MB, and 128MB.
Hardware Prefetcher
If this feature is set to Enable, the hardware prefetcher will prefetch streams of data and
instructions from the main memory to the Level 2 (L2) cache to improve CPU performance.
The options are Disabled and Enabled.
Adjacent Cache Line Prefetch
Select Enabled for the CPU to prefetch both cache lines for 128 bytes as comprised. Select
Disable for the CPU to prefetch both cache lines for 64 bytes. The options are Disabled and
Enabled.
Intel ® (VMX) Virtualization Technology
Select Enabled to use Intel Virtualization Technology to allow one platform to run multiple
operating systems and applications in independent partitions, creating multiple virtual systems
in one physical computer. The options are Disabled and Enabled.
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Chapter 4: BIOS
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