I have the 4630z I upgraded the cpu, hard drive & Ram to 4gb. The system is able to run 64bit windows even if it came with 32bit windows. The cpu was pulled from another computer. The harddrive (250 gb ssd) & Ram are both Samsung & new ;competively priced. I was able to get the Windows upgrade free at the time. I use it as my mobile troubleshooter for other systems and I love the tough design & keyboard. Thats as far as I intend on going with this laptop. If you have the parts already you can try a motherboard swap, but as for buying the parts to do a system rebuild, I agree with the previous answerer. Its not worth the funds.

You could try another Acer line that was released at the same time or cross reference the replacement parts. Acer doesnt manufacture all their parts. They get some parts from a common supplier