Might want to look into the original problem about the overheating rather than lowering the cpu state and also gaming with the cpu state lowered :/
Seems your priorities are off just a tad :)
https://support.microsoft.com/en-us/kb/929135
https://support.microsoft.com/en-us/kb/929833
Use resource monitor to see if it svchost I'd bet it is.
Click Start and type in the search box
resource monitor
http://www.dummies.com/how-to/content/how-to-use-the-resource-monitor-in-windows-7.html