Upgrading Logic board

Hi, i have a intel core duo processor in my macbook and it can only be upgraded to 2gb ram, can i upgrade my logic board so that my computer can have more ram, i have the macbook 1,1 and im wondering if i can put the motherboard from a later model (still non unibody tho) in it, so upgrade it to a 2.4GHz Core 2 Duo that can support 4gb ram. Thanks

 

so would this work in a macbook 1,1 as its also the non unibody design, http://www.ifixit.com/MacBook-Parts/MacBook-Mid-2009-2-13-GHz-Logic-Board-/IF186-090

Thanks.

i would like it to also have an Nvidia chip tho i'm not sure they introduced them early enough as i think my Macbook 1,1 can only fit logic boards up to 2007/8.