See: http://bitsum.com/about_cpu_core_parking.php
FREEWARE - NEW FROM BITSUM
PARKCONTROL
Toggle CPU Core Parking on and off in REAL TIME (no reboot required). For Windows Vista, 7, 8, 2008 R2 (NT 6+). This is any early alpha prototype, so be careful and be SURE you have backed up your power settings via the command recommended on the web page.
This is the basis for new technology in Process Lasso version 6.
Please report your experiences and/or give freedback.