46 Using the System Setup ProgramCPU Information ScreenTable 2-4 lists the options and descriptions for the information fields thatappear on the CPU Information screen.System Memory Testing Specifies whether system memory tests are run at systemboot. Options are Enabled and Disabled.Table 2-4. CPU Information ScreenOption Description64-bit Specifies if the installed processor supports 64-bitextensions.Core Speed Displays the clock speed of the processor.Bus Speed Displays the bus speed of the processor.Virtualization Technology(Disabled default)NOTE: Disable this feature if your system will not berunning virtualization software.Displays when the processor supports VirtualizationTechnology. Enabled permits virtualization software touse Virtualization Technology incorporated in theprocessor design. This feature can only be used bysoftware that supports Virtualization Technology.Adjacent Cache LinePrefetch(Enabled default)Enables or disables optimal use of sequential memoryaccess. Disable this option for applications that requirehigh use of random memory access.Hardware Prefetcher(Enabled default)Enables or disables the hardware prefetcher.Table 2-3. Memory Information Screen (continued)Option Description