Using the System Setup Program 35
CPU Information Screen
Table 2-3 lists the options and descriptions for the informatio n fiel ds that appear on the CPU Information
screen.
Table 2-3. CPU Information Screen
Option Description
Bus Speed Displays the bus speed of the processors.
Logical Processor
(Enabled default) Displays when the processors support HyperThreading. Enabled
permits all logical processors to be used by the operating system.
Only the first logical processor of each processor installed in the
system is used by the operating system if Disabled is selected.
Virtualization Technology
(Disabled default)
Displays when the processor(s) support Virtualization Technology.
Enabled permits virtualization software to utilize Virtualization
Technology functions incorporated in the processor design. This
feature can only be used by software that su pports Virtualization
Technology.
Adjacent Cache Line
Prefetch
(Enabled default)
Enables or disables optimal use of sequential me mory access. Disable
this option for applications that require high use of random memory
access.
Hardware Prefetcher
(Enabled default) Enables or disables the hardware prefetcher.
Demand-Based Power
Management
(Disabled default)
Enables or disables demand-based power management. When
enabled, the CPU Performance State tables wi ll be reported to the
operating system; when disabled, the CPU Performance State ta bles
will not be reported to the operating system. If any of the CPUs do not
support demand-based power management, the field will become
read-only, and automatical ly se t to Disabled.
Processor X ID Displays the fami ly and mode l number of each processor. A submenu
displays processor and core speed, amount of level 2 cache, and the
number of cores.