If you burn the borad, try to contact sony, you may have to pay a price but they will get your machine fixed.
If you are moding a V3 or earlier model, it is a much harder job because you will have to solder so many points to the contorllers leg. I had a V3 machine moded with Origa chip (my first machine and moded machine)... it took me like more than 5 hour to finish the job. Not worth trying yourself.
If it is a v7, then it is a very easy job... just use the following points for the bios legs:
http://www.fileforums.com/showthread.php?threadid=51592
Just done my new v7 with those points... a piece of cake.