2 semi-older laptop motherboards. what could i take off them and add to my compaq cq56?

just a question about 2 laptops i took apart. a dell inpiron 1215(pretty new i guess) and a compaq v6000 or something. i took the motherboards out and saw a pontentially good use for them. i was just wondering what exactly i could take off and add to my computer (compaq cq56) to boost my performance. basiclly i just need a list of what i could take off one motherboard and add on to my current motherboard (if they would work with it) if anybody could help id GREATLY appreciate it. thank you!