Palit / Xpertvision 8600GT new layout? how2vmod?

[Cha0s]

Hey guys, i heard here would be a great place to ask for my problem.
so i start the asking here
I bought a new Palit/Xpertvision 8600GT so it was a great step for me and my old 6600gt (even Vmodded )
I've read before about those Vmods,.. so i was supposed i could do them too,
so now my problem ,.. EVERY how2 and guide i've found was not for my Layout,.. it seems it is the newest 8600 layout,..I need a vmod,.. but don't know how to find the right resistor or pin of IC i have to "ground" to increase Volts..
please help me

here some pics of my card:




i hope you can help me,..
mfg Cha0s from in' germany

EDIT:
Voltage Setting via bios editor for example don't work you just can undervolt ,..since the geforce 8xxx series it isnt possible to power up the volts ,.. so it seems

even some tips to look out for mods for 8500GT oder 7600GT did not give an answer