I wrote the mods at modchip and they said to look at the BIOS chip to tell if I have gap or no-gap. I am doing my first install and have my machine all apart. I dont know which chip is the BIOS, and what to look for on it once I found it. I am very comfortable with soldering and doing these kinds of projects. Can anyone tell me specifically how to tell which V4 I have? Also, I notice there are alternate soldering points under the board. Are these universal? I located them and they seem to be the same for other models as well...and does it matter how you route the wires from the top of the board to get to these points??