Asus P5QL SE - 2.4.2 CPU Configuration; CPU Ratio and C1 E Support Settings; CPUID Limit, Virtualization, and TM Function; Execute-Disable Bit and SpeedStep Technology

2-16 Chapter 2: BIOS setup
2.4.2 CPU Conguration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
Ratio CMOS Setting [Auto]
Sets the ration between CPU core clock and the FSB frequency. Conguration options: [Auto]
• If an invalid ratio is set in CMOS, then the actual and set values may differ.
• Key in ratio numbers directly.
C1E Support [Enabled]
Allows you to enable or disable C1E Support. Conguration options: [Disabled] [Enabled]
Max CPUID Value Limit [Disabled]
Setting this item to [Enabled] allows legacy operating systems to boot even without support
for CPUs with extended CPUID functions. Conguration options: [Disabled] [Enabled]
Intel
®
Virtualization Technology [Enabled]
Enables or disables Intel
®
Virtualization Technology. Virtualization enhanced by Intel
®
Virtualization Technology allows a platform to run multiple operating systems and applications
in independent partitons. With virtualization, one computer system can function as multiple
virtual systems. Conguration options: [Enabled] [Disabled]
CPU TM function [Enabled]
Enables or disables Intel
®
CPU Thermal Monitor (TM) function, a CPU overheating protection
function. When enabled, the CPU core frequency and voltage are reduced when the CPU
overheats. Conguration options: [Disabled] [Enabled]
Execute-Disable Bit Capability [Enabled]
Allows you to enable or disable the No-Execution Page Protection Technology. Setting this
item to [Disabled] forces the XD feature ag to always return to zero (0).
Conguration options: [Disabled] [Enabled]
The following item appears only when you installed an Intel
®
Pentium
®
4 or later CPU that
supports the Enhanced Intel
®
SpeedStep
®
Technology (EIST).
Intel
®
SpeedStep
®
Technology [Enabled]
Allows you to use the Enhanced Intel
®
SpeedStep
®
Technology. When set to [Enabled], you
can adjust the system power settings in the operating system to use the EIST feature. Set
this item to [Disabled] if you do not want to use the EIST.
Conguration options: [Enabled] [Disabled]