Execute Disable Bit; Hardware Prefetcher; Intel Virtualization Technology - Gigabyte GA-7PESH3 User Manual

Limit CPUID Maximum
When enabled, the processor will limit the maximum CPUID 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
processor 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.
- 53 - BIOS Setup