Intel/AMD CPUs. Freeware Application to set CPU Multiplyer factor and voltage:

In "Multiplyer Management Setting" you can set multiple overcklock and underclock settings whitch are than managed dynamically according to your system load... Maximum performance and cool Temperatures

Don't forget to start Funktion > Multiplyer Management (Or Press F3)
Developer Description:

   * Multiplier Management
   * Support AMD64/EM64T
   * Intel SpeedStep Control
   * AMD K6/K7/K8/GeodeLX Multiplier/Voltage Control
   * VIA CyrixIII/C3 Multiplier Control
   * MSR Editor/MSR Walker
   * Clock, Cache, System Clock, Multiplier
   * Feature Flags
   * CPUID
   * Process Rule
   * Code Name
   * Multi Processor
   * PCI Device List
   * Chipset/VGA information
   * BIOS Information

Hope you like it - It's good for your hardware and contributes to to safe energy