[Headly]

Could use a little more information on this one, but i'll assume a bit here. I think you are talking about the cd\dvd controller(the square chip) not the bios chip(rectangular). Most installs on later versions call for you to solder to the pads underneath the chip as this is safer and easier then soldering directly to the chip. What chip are you trying to install? Whats version PS2 do you have? Where did you get your install diagrams?