Asus P5QPL-VM EPU - Manual (Page 54)

2-12 Chapter 2: BIOS setup
2.4.2 CPU Configuration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
Ratio CMOS Setting [Auto]
Allows you to set the ratio between CPU Core Clock and the FSB frequency.
Configuration options: [Auto]
• If an invalid ratio is set in CMOS then actual and set values may differ.
• Key in ratio numbers directly.
C1E Support [Enabled]
Allows you to enable or disable Intel CPU Enhanced Halt (C1E) function, a CPU
power-saving function in system halt state. When this item is enable, the CPU core frequency
and voltage will be reduced during the system halt state to decrease power consumption.
Configuration options: [Disabled] [Enabled]
Max CPUID Value Limit [Disabled]
Allows you to determine whether to limit CPUID maximum value. Set this item to [Disabled]
for Windows XP operating system; set this item to [Enabled] for legacy operating system
such as Windows NT4.0. Configuration options: [Disabled] [Enabled]
Intel ® Virtualization Tech [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 partitions. With Virtualization, one computer system can function as multiple
virtual systems. Configuration options: [Enabled] [Disabled]
CPU TM Function [Enabled]
Enables or disables Intel ® CPU Thermal Monitor (TM) function, a CPU overheating protection
function. When this item is enabled, the CPU core frequency and voltage are reduced when
the CPU overheats. Configuration options: [Disabled] [Enabled]
Execute-Disable Bit Capability [Enabled]
Enables or disables Intel ® Execute Disable Bit function. This function enhance protection
of your computer, reducing exposure to viruses and malicious buffer overflow attacks when
working with its supporting software and system. Configuration options: [Disabled] [Enabled]
Intel ® SpeedStep ® Tech [Enabled]
Allows you to use the Enhanced Intel ® SpeedStep ® Technology. When this item is 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. Configuration options:
[Enabled] [Disabled]
The following item appears only when you installed an Intel ® Pentium ® 4 or later CPU that
supports the Enhanced Intel SpeedStep ® Technology (EIST).