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8.4.15
CPU Submenu
Feature
Options
Description
►
CPU Information
Submenu
Set Boot Freq Ratio
255
(more values)
Sets the boot ratio.
Range: 4 – 28. If ratio is out of range, maximum ratio is used. Non-ACPI operating systems use this ratio.
Hyper-Threading
Disabled
Enabled
Enable or disable the Hyper-Threading technology.
Active Processor Cores
All
1
2
3
Enable the desired number of cores.
Overclocking Lock
Disabled
Enabled
FLEX_RATIO(194) MSR.
Intel
®
Virtualization Technology
Disabled
Enabled
Enable this feature if you need a VMM to utilize the integrated hardware virtualization support.
Hardware Prefetcher
Disabled
Enabled
Enable or disable the MLC streamer prefetcher.
Adjacent Cache Line Prefetch
Disabled
Enabled
Enable or disable prefetching of adjacent cache lines.
CPU AES
Disabled
Enabled
Enable or disable CPU Advanced Encryption Standard (AES) instructions.
Boot performance mode
Max Battery
Max Non-Turbo
Performance
Turbo Performance
Select the performance state the BIOS will set before operating system handoff.
Intel
®
Speed Shift Technology
Disabled
Enabled
Enable this feature to expose the CPPC v2 interface, allowing hardware controlled P-states.
Intel
®
SpeedStep(tm)
Disabled
Enabled
Enable this feature if you require support for more than two frequency ranges.
Turbo Mode
Disabled
Enabled
Enable or disable ‘Turbo Mode’.
P-State Reduction
Disabled
by 1
by 2
by 3
by 4
by 5
by 6
by 7
by 8
Limits the maximum non-turbo CPU performance state in an ACPI operating system.
Package Power Limit Lock
Disabled
Enabled
If this feature is enabled, PACKAGE_POWER_LIMIT MSR will be locked and a reset will be required to unlock the
register.