I got a NV55s03u before the NV55s04u came out but I was interested in swapping the CPU from the A4-3300M to a A8-3530MX for the graphics boost. Metro 2033 plays barely but I think with that it would run much better. What do you guys think? No guides exist on how to open this laptop, would I need to disassemble it ALL or could I just take the keyboard out and gain access to the CPU and heatsink? Anyways what're your thoughts on this.