I am looking to upgrade my Motherboard and do not want to buy an incompatible one, i see on NEWEGG.com they give u three details on every MoBo, SOCKET (478, 775) ect, a North bridge, and what ram it can support. I know my socket is 478 i want pc3200 ram, but i dont know what northbridge i need, I want to put my Intel P4N 2.53 Northwood in there, any help???