Acer AR160 F1 - Manual (Page 79)

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Important: The following feature is only available if supported by
the processor and/or operating system.
Adjacent Cache Line Prefetch: The CPU fetches the cache line for 64
bytes if this option is set to Disabled. The CPU fetches both cache lines
for 128 bytes as comprised if Enabled.
MPS and ACPI MADT Ordering: Allows you to configure the MPS
(Multi-Processor Specifi cations) and ACPI settings for your
motherboard. Select Modern Ordering if Windows XP or newer is used.
Select Legacy Ordering if Windows 2000 or earlier is used.
Important: The following feature is only available if supported by
the processor and/or operating system.
Intel Virtualization Technology: Select Enabled to use Virtualization
Technology to allow one platform to run multiple operating systems
and applications in independent partitions, creating multiple virtual
systems in one physical computer.
Important: The following feature is only available if supported by
the processor and/or operating system.
Execute-Disable Bit Capability: Set to Enabled to enable the Execute
Disable Bit which will allow the processor to designate areas in the
system memory where an application code can execute and where it
cannot, thus preventing a worm or a virus from flooding illegal codes
to overwhelm the processor or damage the system during an attack.
Important: The following feature is only available if supported by
the processor and/or operating system.
Simultaneous Multi-Threading: Set to Enabled to use simultaneous
multi-threading technology, which will result in increased CPU
performance.
Active Processor Cores: Set to Enabled to use a processor's second core
and beyond. The options are All, 1 and 2.