BIOS Setup Information
PGB-5120S User’s Manual
4-9
Hyper-Threading
Enabled for Windows XP and Linux (OS optimized for Hyper-Threading
Technology) and Disabled for other OS (OS not optimized for Hyper-Threading
Technology). When Disabled only one thread per enabled core is enabled.
Choices: Disabled, Enabled.
Active Processor Cores
Number of cores to enable in each processor package.
Choices: All, 1.
Limit CPUID Maximum
Disabled for Windows XP.
Choices: Disabled, Enabled.
Execute Disable Bit
XP can prevent certain classes of malicious buffer overflow attacks when combined
with a supporting OS (Windows Server 2003 SP1, Windows XP SP2, SuSE Linux 9.2,
RedHat Enterprise 3 Update 3.).
Choices: Disabled, Enabled.
Hardware Prefetcher
To turn on/off the Mid Level Cache (L2) streamer prefetcher.
Choices: Disabled, Enabled.
Adjacent Cache Line Prefetch
To turn on/off the prefetching of adjacent cache lines.
Choices: Disabled, Enabled.
Intel Virtualization Technology
When enabled, a VMM can utilize the additional hardware capabilities provided by
Vanderpool Technology.
Choices: Disabled, Enabled.
Power Technology
Enable the power management features.
Choices: Disabled, Energy Efficient, Custom.
EIST
Enabled/Disabled Intel SpeedStep.
Choices: Disabled, Enabled.
P-STATE Coordination
Change P-STATE Coordination type.
Choices: HW_ALL, SW_ALL, SW_ANY.
