Execute Disable Bit; Hardware Prefetcher; Intel Virtualization Technology - Gigabyte GA-7PESH1 User Manual

Limit CPUID Maximum
When enabled, the processor will limit the maximum COUID input values to 03h when queried, even if
the processor suppports a higher CPUID input value.
When disabled, the processor will return the actual maximum CPUID input value of the processor when
queried.
Options available: Enabled/Disabled. Default setting is Disabled.

Execute Disable Bit

When enabled, the processor prevents the execution of code in data-only memory pages. This provides
some protection against buffer overflow attacks.
When disabled, the processor will not restrict code execution in any memory area. This makes the pro-
cessor more vulnerable to buffer overflow attacks.
Options available: Enabled/Disabled. Default setting is Enabled.

Hardware Prefetcher

Select whether to enable the speculative prefetch unit of the processor.
Options available: Enabled/Disabled. Default setting is Enabled.
Adjacent Cache Line Prefetch
When enabled, cache lines are fetched in pairs. When disabled, only the required cache line is fetched.
Options available: Enabled/Disabled. Default setting is Enabled.
DCU Streamer Prefetch
Enable prefetch of next L1 Data line based upon multiple loads in same cache line.
Options available: Enabled/Disabled. Default setting is Enabled.
DCU IP Prefetch
Enable prefetch of next L1 Data line based upon sequential load history.
Options available: Enabled/Disabled. Default setting is Enabled.

Intel Virtualization Technology

Select whether to enable the Intel Virtualization Technology function. VT allows a single platform to run
multiple operating systems in independent partitions.
Options available: Enabled/Disabled. Default setting is Enabled.
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