Dell Inspirpn N5040 CPU Change.

[Natcher26]

I have an Intel I3-390m
Chipset HM57
Socket 989 rPGA

Can I replace it with a:
Intel i5-560M
Socket G1

I can get one cheap.

If so will i have to do ant other changes ie. heat sink, RAM?

I an a novice computer user.

 

[cin19]

Yes, you can.
The n5040 has the HM57 chipset, and the compatible products list http://ark.intel.com/products/43179/Intel-BD82HM57-PCH and your computer specifications ftp://ftp.dell.com/Manuals/all-products/esuprt_laptop/esuprt_inspiron_laptop/inspiron-15-intel-n5040_Reference%20Guide_en-us.pdf
But I recommend you google how to replacement the laptop cpu first, so you have idea how to change it. I add the link here you can find more if you want.
http://video.search.yahoo.com/search/video?p=how+to+replacement+the+laptop+cpu