MSI P67A User Guide - Page 52

BIOS Setup, Power Technology, C1E Support, support Enhanced Halt state C1E., Intel C-State, ports c-

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BIOS Setup ▶ Execute Disable Bit Intel's Execute Disable Bit functionality can prevent certain classes of malicious "buffer overflow" attacks when combined with a supporting operating system. This functionality 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 or worm propagation. ▶ Intel Virtualization Tech This item is used to enable/disable the Intel Virtualization technology. For further information please refer to Intel's official website. ▶ Power Technology This item allows you to select the Intel Dynamic Power technology mode. ▶ C1E Support To enable this item to read the CPU power consumption while idle. Not all processors support Enhanced Halt state (C1E). ▶ OverSpeed Protection Overspeed Protection function can monitor the current CPU draws as well as its power consumption. If it exceeds a certain level, the processor automatically reduces its clock speed. If you want to overclock your CPU, set it to [Disabled]. ▶ Intel C-State C-state is a power management state that significantly reduces the power of the processor during idle. This field will appear after you installed the CPU which supports c-state technology. ▶ Package C-State limit This field allows you to select a C-state mode. ▶ Long duration power limit(W) This field allows you to adjust the TDP power limit for the long duration. ▶ Long duration maintained(ms) This field allows you to adjust the maintaining time for long duration power limit. ▶ Short duration power limit(W) This field allows you to adjust the TDP power limit for the short duration. ▶ 1/2/3/4-Core Ratio Limit These fields show the 1/2/3/4 core ratio limit of CPU. 3-12

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3-12
BIOS Setup
Execute D±sable B±t
Intel’s Execute D±sable B±t funct±onal±ty can prevent certa±n classes of mal±c±ous
“buffer overflow” attacks when comb±ned w±th a support±ng operat±ng system. Th±s
funct±onal±ty allows the processor to class±fy areas ±n memory by where appl±cat±on
code can execute and where ±t cannot. When a mal±c±ous worm attempts to ±nsert
code ±n the buffer, the processor d±sables code execut±on, prevent±ng damage or
worm propagat±on.
Intel V±rtual±zat±on Tech
Th±s ±tem ±s used to enable/d±sable the Intel V±rtual±zat±on technology. For further
±nformat±on please refer to Intel’s offic±al webs±te.
Power Technology
Th±s ±tem allows you to select the Intel Dynam±c Power technology mode.
C1E Support
To enable th±s ±tem to read the CPU power consumpt±on wh±le ±dle. Not all processors
support Enhanced Halt state (C1E).
OverSpeed Protect±on
Overspeed Protect±on funct±on can mon±tor the current CPU draws as well as ±ts
power consumpt±on. If ±t exceeds a certa±n level, the processor automat±cally reduces
±ts clock speed. If you want to overclock your CPU, set ±t to [D±sabled].
Intel C-State
C-state ±s a power management state that s±gn±ficantly reduces the power of the
processor dur±ng ±dle. Th±s field w±ll appear after you ±nstalled the CPU wh±ch sup-
ports c-state technology.
Package C-State l±m±t
Th±s field allows you to select a C-state mode.
Long durat±on power l±m±t(W)
Th±s field allows you to adjust the TDP power l±m±t for the long durat±on.
Long durat±on ma±nta±ned(ms)
Th±s field allows you to adjust the ma±nta±n±ng t±me for long durat±on power l±m±t.
Short durat±on power l±m±t(W)
Th±s field allows you to adjust the TDP power l±m±t for the short durat±on.
1/2/3/4-Core Rat±o L±m±t
These fields show the 1/2/3/4 core rat±o l±m±t of CPU.
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