HI, 
I went into the BIOS and diseabled Hyperthreading. Now I get this: 
 
Its says that I have now 4 cores, 4 logical Processors but the Ressource manager shows me only 3 cores but I guess it is because it count CPU 0 as one so 0,1,2 and 3 would be 4 cores. Why can't I see the 8 x cores like Fruitbat and Propnut ?  
In the BIOS I did not see anything about turning ON Cores individually. 
Thanks Guys ! 
MT