Did Vdroop mod, need some help with voltage

[n19htmare]

Recently I did the Vdroop mod on my asus p4c800-E dlx but now my voltage is off from what I set it in bios.

I have a 50k VR at 30K ohm.

Say i set it 1.40 in bios, it turns out to be like 1.45-147

Why is that and how can i minimize that or get rid of it?

Thanks for help

Mo