Table 40. System setup options—Virtualization menu (continued)VirtualizationIntel Trusted Execution Technology(TXT)Enable Intel Trusted ExecutionTechnology (TXT)Specifies whether a measured Virtual Machine Monitor (MVMM) can utilize theadditional hardware capabilities that are provided by Intel Trusted ExecutionTechnology.By default, the option is disabled.DMA ProtectionEnable Pre-Boot DMA Support The option is enabled by default.Enable OS Kernel DMA Support The option is enabled by default.Table 41. System setup options—Performance menuPerformanceMulti Core SupportActive Cores Enables to change the number of CPU cores available to the operating system.By default, the All Cores options are enabled.Intel SpeedStepEnable Intel SpeedStep Technology Enables the computer to dynamically adjust processor voltage and corefrequency, decreasing average power consumption and heat production.By default, the option is enabled.C-States ControlEnable C-State Control Enable or disable additional processor sleep states.By default, the option is enabled.Intel Turbo Boost TechnologyEnable Intel Turbo Boost Technology Enable or disable Intel TurboBoost mode of the processor.By default, the option is enabled.Intel Hyper-Threading TechnologyEnable Intel Hyper-Threading Technology Enable or disable Hyper-Threading in the processor.By default, the option is enabled.PCIe Resizable Base Address Register(BAR)This option is disabled by default.Table 42. System setup options—System Logs menuSystem LogsBIOS Event LogClear BIOS Event Log Display BIOS events.By default, the Keep option is enabled.BIOS-inställningar 117