Asus P5B Vanilla (non dlx!) vcore+dimm needed

[nicepun]

I did the vdimm mod on my P5B-E.
But something seems to be seriously wrong here.
When the board goes into the BIOS vmem starts dropping to ~1.85v, when I reboot after setting up the BIOS vmem drops to 1.20v.

So 2 options:
measuring point is different on P5B-E
vdimm mod is different and I'm overvolting something else

I did it and it worked fine for me? What do you have the vdimm set in bios? I set my to 2.1vdimm before doint the vdimm mod.