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3-5-1 CPU Features
C1E Function
This should be enabled in order to enable or disable the “Enhanced Halt State”. The
optional settings are: Enabled; Disabled.
Hardware Prefetcher
For UP platform, leave it as Enabled. For DP/MP servers, it may use to tune
performance to the specific application. The optional settings are: Enabled; Disabled.
Adjacent Cache Line Prefetch
For UP platform, leave it as Enabled. For DP/MP servers, it may use to tune
performance to the specific application. The optional settings are: Enabled; Disabled.
Max CPUID Value Limit
Set it as Disabled for Windows XP. The optional settings are: Enabled; Disabled.
Intel (R) Virtualization Tech
When this item is set as Enabled, a VMM can utilize the additional HW Caps.
Provided by Intel(R) Virtulization Tech. Note: A full reset is required to change the
setting. The optional settings are: Enabled; Disabled.
Execute-Disable Bit Capabili
When disabled, force the XD feature flag to always return 0. The optional settings are:
Enabled; Disabled.
Intel(R) HT Technology
When Disabled, only one thread per enabled core is enabled. The optional settings
are: Enabled; Disabled.
Active Processor Core
Use this item to decide the number of cores to enable in each processor package.
The optional settings are: All; 1, 2, 3 and 4.
A20M
Legacy OSes and APs may need A20M enabled. The optional settings are: Enabled;
Disabled.