Sorry for the second post, I just tried to edit, but I couldn't.
I didn't find the entire guide, but I made it by the pictures, I've posted
I think I did the solvering correctly. I think the problem was, that I had
regular potentiometer instead of helical potentiometer, so when I turned it a
little bit, something got a lot of voltages.
Now, I try to find out, what was the part, which got this high voltage - it
colud be some voltage-regulator, because the card started up 2-3 times, but
the voltage of the memory fluctuated, and later it disappeard.
I cannot make screenshots, because the vga don't work at all. Also I cannot
post any pictures from my card, because I dont have a digital camera.
I solvered a 100kOhm potentiometer as it showed in the picture.
One clip to the left side of the c569 smd, the other clip to the zinc dot at
the Q515 mark.
I also solvered an other potentiometer for the gpu voltmod by the next
picture:
The only difference is, I used a regular potentiometer instead of a helical
one, just like above - but it isn't count, I had no chance to adjust the
voltage of the gpu, because I killed my card with the other potentiometer
before I could do this.