Very nice CPU, my 940 needs 1,386V to be stable at 4Ghz on an EX58 Extreme...
So you only raised the QPI/VTT voltage to 1,26V to get to 200 BCLK is that correct? No other voltages (except Vcore and Vmem ofc)?
Tried prime blend yet at 200? I seem to be stable at 182 BCLK using 1,2V QPI/VTT and 1,2V on the ICH Core.