Foxconn P55A-S English Manual. - Page 35

3 CAUTION ► Limit CPUID MaxVal This item is used to enable or disable CPUID maximum value limit configuration. Set [Disabled] for WinXP. ► Virtualization Technology Virtualization (i.e. Intel® Vanderpool Technology) allows a platform to run multiple operating systems and applications in independent partitions or "containers." One physical compute system can function as multiple "virtual" systems. Vanderpool Technology can help improve future virtualization solutions. This item will be displayed only when the CPU is supporting this feature and the setting is used to enable/disable it. ► Execute Disable Bit This item is used to enable/disable the Execute Disable Bit feature. Intel's Execute Disable Bit functionality can help prevent certain classes of malicious buffer overflow attacks when combined with a supporting operating system. Execute Disable Bit allows the processor to classify areas in memory by where application code can execute and where it cannot. When a malicious worm attempts to insert code in the buffer, the processor disables code execution, preventing damage and worm propagation. Replacing older computers with Execute Disable Bit-enabled systems can halt worm attacks, reducing the need for virus-related repairs. By combining Execute Disable Bit with anti-virus, firewall, spyware removal, e-mail filtering software, and other network security measures, IT managers can free IT resources for other initiatives. ► Intel(R) HT Technology This item is used to enable/disable the Hyper Threading Technology feature. ► Active Processor Cores This item is used to set the number of cores to enable in each processor package. ► A20M Legacy OSes and APs may need A20M enabled. ► EIST Function You can enable/disable the EIST (Processor Power Management, PPM) through this item. ! Enhanced Intel SpeedStep® technology (EIST) allows the system to dynamically adjust processor voltage and core frequency, which can result in decreased average power consumption and decreased average heat production. There are some system requirements must be met, including CPU, chipset, motherboard, BIOS and operation system. Please refer to Intel website for more information. ► Intel(R) C-STATE Technology This item is used to enable/disable C-State. C-State means CPU idle is set to C2/C3/C4. ► C3 State This item is used to enable/disable C3 State. ► C6 State This item is used to enable/disable C6 State. ► C State Package Limit The selected option will be entered into C State Package limit register. ► C1 Auto Demotion When enable, CPU will conditionally demote C3/C6/C7 requests to C1 based on uncore auto- 28