04vwf2 Alienware MOBO, Trying to overclock my I7920 to 4.0ghz, but uncore is gre

[silentmp]

Hello,
I am trying to overclock my computer, I have a alineware 04vwf2 mobo, the uncore is greyed out so what do I do about that.

 

[Oowah]

Not too sure if alienware locks particular settings on their motherboard for warranty reasons. Other company like Dell and gateway do this, and I might be mistaken, but I believe Dell bought the alienware name last year.
This could be your problem.