Presuming it is a Black Edition why do I not have a Cool Boost and Turbo Boost in my Quick Access? On a related issue I have also started after 6 months since new been experiencing my CPU being stuck on 798MHz even when cool and not even achieving the basic 2.6GHz when running Microsoft FSX Flight Simulator. CPU temp was getting up to 79 degrees Celsius. I have since applied two solutions from this forum 1. Installed and run Notebook Fan Control which I have to set at 99% because the Auto setting does not seem to unthrottle my CPU and 2. Installed Throttlestop and unticked BD Prochot. These have worked but I should'nt have to do this. Anyway I will continue to monitor this forum for any ideas of the actual problem requiring these "bandaids".