I need a replacement motherboard however there arent' any available for the A1013 on ebay. Will any of the other 17" Powerbook boards fit? The actual motherboard that goes in it is a 820-1502-A but i've had no luck finding one of those guaranteed working. I swapped motherboard types in a 15" powerbook g4 once, but I ended up with some misaligned screw holes and i needed to swap out a LOT of connectors in the cases to make them fit right. Needless to say i don't want to do that again.