Trouble with P4P800 Vmodd

To make my long story short, I started the mod on my P4P800 Deluxe tonight. I go from pin 6 via grabbers with cat-5 copper wire to my 50k square pot on one of the side pins. I take the middle upper pin (which IS the ground, right?), and soldered a fan connector onto that so that I can connect it to a fan plug on the motherboard for the ground. When I check the voltages with the system on, the voltage actually DECREASES from 2.55 to 2.0 or so when I twist the dial 1 full turn. Why is this happening? This is not the way this is supposed to go, right? I need some help soon before I lose my mind. Everyone else has no problems, and I always have to be the one to prove them wrong!

Thanks a lot

Calm down Chicken little. Check your P.M.

GD