I am trying to figure out what processor is compatible with my motherboard in my HP Pavilion dv6628us notebook. I've read the manual and looked on HP's PartSurfer. PartSurfer listed a number of them from 1.46 GHz to 2.4 GHz. I purchased an intel duo processor 2.4GHz that did not work. Now I'm trying to figure out if that processor wasn't compatible or if it is just faulty. If it is not faulty or compatible, I need to know what is compatiable so I can purchase it tonight and have it shipped by Wednesday because I am going through serious withdrawals without my computer. Help me please.