Sparkle 8800gt Voltmod - no reference design?!

[Heinzkopf]

micheskillz, what VR did u use for vMem mod?


I measure between this point and ground 650 Ohms and so i used a 13K Ohms VR.

But unfortunately i can't change my vMem.. Even if i put the Vr to nearly 0 Ohms it doesnt has an effect of the vMem Voltage.
The 2 Measurement Points for vMem always display 1,86V and 1,89V/1,91V (under Load).

The 2 Points I used are these:



What am i doing wrong? wrong VR value? bad measurement points?

thanks