Gigabyte GA-6PXSV2 Manual - Page 42

L3 Cache Display the information of total L3 Cache per socket. CPU Speed Display the current installed CPU speed. 64-bit Display the supported infprmation of installed CPU. Hyper-threading The Intel Hyper Threading Technology allows a single processor to execute two or more separate threads concurrently. When hyper-threading is enabled, multi-threaded software applications can execute their threads, thereby improving performance. Options available: Enabled/Disabled. Default setting is Enabled. 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 processor more vulnerable to buffer overflow attacks. Options available: Enabled/Disabled. Default setting is Enabled. Energy Performance Energy Performance Bias is Intel CPU function. The larger value in MSR_ENERGY_PERFORMANCE_BIAS register, CPU will save more power but lose more performance. Note: This register will be changed by OS too if OS support it like Windows 2008 or newer Linux. Options available: Performance : Write value 0 into MSR_ENERGY_PERFORMANCE_BIAS Balanced Performance: Write value 7 into MSR_ENERGY_PERFORMANCE_BIAS Balanced Energy: Write value 11 into MSR_ENERGY_PERFORMANCE_BIAS Energy Efficient: Write value 15 into MSR_ENERGY_PERFORMANCE_BIAS Default setting is Balanced Performance. 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. Local APIC Mode Select Local APIC mode. If set to Auto, use x2APIC if required, otherwise xAPIC mode. xAPIC will disable CPU with APIC IDs greater than 254. Some OSes don't support x2APIC mode. Options available: Auto/x2APIC/xAPIC. Default setting is Auto. (Note) This item is present only if you install a CPU that supports this feature. For more information about Intel CPUs' unique features, please visit Intel's website. BIOS Setup - 42 -