Foxconn D255 User manual - Page 27

CPU Configuration, ► Hyper Threading Technology, ► Execute-Disable Bit, ► EIST Function

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3 CPU Configuration Aptio Setup Utility - C opyright (C) 2011 American Megatrends, Inc. Advanced CPU Configuration Physical Count: 2 logical Count: 4 CPU Brand Name: Genuine Intel(R)CPU Cache L1: 2x56 k Cache L1: 2x512 k Current CPU Speed 2132 MHz Hyper-threading [Enabled] Execute Disable Bit [Enabled] Limit CPUID Maxium [Disabled] EIST [Enabled] CPU C6 state [Disabled] Enabled for Windows XP and Linux (OS optimized for Hyper-threading Technology) and Disabled for other OS (OS not optimized for Hyper-threading Technology). → ←: Select Screen ↑ ↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit ESC: Exit Version 2.13.1216. Copyright (C) 2011 American Megatrends, Inc. ► Hyper Threading Technology This item is used to enable/disable the Hyper Threading Technology feature. ► 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. ► Limit CPUID MaxVal This item is used to enable or disable CPUID maximum value limit configuration. Set [Disabled] for WinXP. ► EIST Function You can select the EIST (Processor Power Management, PPM) through this item. ► CPU C6 report This item is used to enable or disable CPU C6(ACPI C3) report to OS. 20

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20
3
CPU Configuration
Version 2.13.1216. Copyright (C) 2011 American Megatrends, Inc.
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
CPU Configuration
Enabled for Windows XP and
Linux (OS optimized for
Physical Count:
2
Hyper-threading Technology)
logical Count:
4
and Disabled for other OS
CPU Brand Name:
Genuine Intel(R)CPU
(OS not optimized for
Cache L1:
2x56 k
Hyper-threading Technology).
Cache L1:
2x512 k
Current CPU Speed
2132 MHz
Hyper-threading
[Enabled]
Execute Disable Bit
[Enabled]
Limit CPUID Maxium
[Disabled]
EIST
[Enabled]
CPU C6 state
[Disabled]
→ ←: Select Screen
↑ ↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit
Advanced
► Hyper Threading Technology
This item is used to enable/disable the Hyper Threading Technology feature.
► 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.
►
Limit CPUID MaxVal
This item is used to enable or disable CPUID maximum value limit configuration. Set [Disa
-
bled] for WinXP.
► EIST Function
You can select the EIST (Processor Power Management, PPM) through this item.
► CPU C6 report
This item is used to enable or disable CPU C6(ACPI C3) report to OS.