My computer got wet and I was told I need a new motherboard. It is an Acer aspire 7741G-3449 I have a 640Gb HHD in it with all my programs, files, etc. I bought an Acer aspire 7741Z-4433 that has a 340Gb HHD in it. I would like to put the 640Gb into my new computer and remove the 340Gb however...