Enhanced Intel SpeedStep® Technology as an advanced means of enabling very high performance while also meeting the power-conservation needs of mobile systems. Conventional Intel SpeedStep Technology switches both voltage and frequency in tandem between high and low levels in response to processor load. Enhanced Intel SpeedStep Technology builds upon that architecture using design strategies that include the following:

* Separation between Voltage and Frequency Changes. By stepping voltage up and down in small increments separately from frequency changes, the processor is able to reduce periods of system unavailability (which occur during frequency change). Thus, the system is able to transition between voltage and frequency states more often, providing improved power/performance balance.

* Clock Partitioning and Recovery. The bus clock continues running during state transition, even when the core clock and Phase-Locked Loop are stopped, which allows logic to remain active. The core clock is also able to restart far more quickly under Enhanced Intel SpeedStep Technology than under previous architectures.

Because Enhanced Intel SpeedStep Technology reduces the latency associated with changing the voltage/frequency pair (referred to as P-state), those transitions can be practically undertaken more often, which enables more-granular demand-based switching and the optimization of the power/performance balance based on demand. This article gives developers an overview of the support for Enhanced Intel SpeedStep Technology and demand-based switching under Linux. It is also a ready reference for developers interested in new user-level or in-kernel policy based on Enhanced Intel SpeedStep Technology.


I would of thought that option would have already been activated :S

Message Edited by UT2005 on 03-15-2006 01:52 AM

Thanx for your reply....

I will engage it.   Also, I have the same sound card & speaker system as you & was wondering what bass redirection frequency you  use for best sound.  Thanx again.  Jim