Really nice OC, but not LV WR
I've seen 2 or 3 similar CPUs in the German HWluxx forums, incidentially on the same mobo. The DFI LT/UT P35 rock.. they're even better than my X38 except the X38 clocks 4x1gb a bit better.

Now try how low you can go with 4Ghz, mine needs around 1,42V (GTL disabled tho )