I installed Alienware R4 A06 Bios today and found that I can no longer change and set the Clock to 43 43 43 43 43 43 as with A05 Bios.
They are locked it down at 41 38 38 38 38 38.
What a true bummer. I guess my testing with EVGA x79 & Z77 MB are the way to go.
1st time Dell "Alienware" has really let me down with a Bios update for over 10 years.
Back to building my on Gaming PC
Bill