Asus P5KPL-AM - Manual (Page 68)

2-22 Chapter 2: BIOS setup
CPU TM function [Enabled]
Enables or disables Intel® CPU Thermal Monitor (TM2) function, a CPU
overheating protection function. When enabled, the CPU core frequency and
voltage is reduced when the CPU is overheats. Configuration options: [Enabled]
[Disabled]
Execute Disable Bit [Enabled]
Allows you to Enable/disable Execute Disable Function.
Configuration options: [Disabled] [Enabled]
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.
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).