Foxconn P45A-S Socket 775 P45A-S Manual Do Utilizador

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P45A-S
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► 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. 
► Core Multi-Processing
It is used to enable or disable the feature and will be displayed only if your CPU is supporting 
this feature. 
► PECI
PECI stands for Platform Environment Control Interface. The PECI bus, allowing access to 
this data from chipset components, is a proprietary single-wire interface with a variable data 
transfer speed (from 2 kbit/s to 2 Mbit/s).
From a control standpoint, the main difference between PECI and the previously used thermal 
monitoring methods is that PECI reports a negative value expressing the difference between 
the current temperature and the thermal throttle point (at which the CPU reduces speed or 
shuts down to prevent damage due to overheating) instead of the absolute temperature. For 
example, for a CPU with maximal temperature of 85 °C and a current temperature reading of 
35 °C, the value reported by PECI would be -50 °C.
► EIST Function
You can select 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 require-
ments must be met, including CPU, chipset, motherboard, BIOS and operation system. 
Please refer to Intel Website for more information.    
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