User`s manual

DIGITAL-LOGIC AG MPC40/A/B/C, MPC41 Manual V1.4C
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4.14 Speedstep Performance Control
The Pentium-M improved the Speedstep mechanism, in adding a third power scheme in addition to the low-
power and the full-performance modes. This new mode is called adaptive mode, and allows the frequency
and voltage to switch according to the CPU activity. The CPU uses a low-power mode by default, but when
its activity increases, it switches itself very quicky in full-performance mode. This new power scheme is vey
pleasant to use, because it allows to get the full CPU speed only when it is needed. Of course, the power
consumption depends on the CPU activity, and the more the CPU is used, the more it consumes power.
Windows XP
Power
Schemes
AC Power (Frequency Exam-
ple mobile Pentium-M 1.6
GHz)
Battery DC (Frequency Exam-
ple mobile Pentium-M 1.6 GHz)
Home/Office
Desktop
None (1.6 GHz Always) Adaptive (600 MHz <...>1.6 GHz)
Portable
/Laptop
Adaptive (600 MHz <...>1.6
GHz)
Adaptive (600 MHz <...>1.6 GHz)
Presentation Adaptive (600 MHz <...>1.6
GHz)
Degrade (600 MHz)
Always On None (1.6 GHz Always) None (1.6 GHz Always)
Minimal Power
Management
Adaptive (600 MHz <...>1.6
GHz)
Adaptive (600 MHz <...>1.6 GHz)
Maximum Bat-
tery
Adaptive (600 MHz <...>1.6
GHz)
Degrade (600 MHz)
CPU performance is heavily dependent on the choice of power scheme in the system control
4.14.1 Set up Powermanagement
Start / Control Panel / Appearance and Themes / Display
Go to the register Screen Saver
Press Power Button