silicon pop culture!

First greeting and apologies cause i couldnt find any better place to ask the questions that i have.

OK i have a Sony VAIO VGN-FS415M laptop, but about half year ago my laptop stoped working, the problem is dead motherboard. Now, i need a advice, what motherboards can fit in my laptop to buy? I assembled many desktop computers but this is little different i believe, but then again it doesnt seem to hard.
I was looking the motherboards on ebay, but, can i only put the motherboard from my model in laptop to work? or can i put install any motherboard from series VGN-FS ? Or maybe some other?
So what i am asking is motherboard from VGN-FS415M laptops only one that is compatible with my laptop or can i use any motherboard from VGN-FS series? or maybe i can use from FZ series or some others?
And what would be the best to buy?
Thx in advance for all answers!

I’d use only FS series motherboard; however be aware that your recovery media will not work with a motherboard taken from a different model of FS. You will need to get the recovery DVD for that particular model.