I have a cpu of intel core i3, Ram amounting to 4gb, which from my experience is not enough for some high end games out there. I'd really want to upgrade my laptop into something much more gamer friendly.

As far as gaming, the system in question is a dead end -- if it serves your other purposes as a notebook, keep it and add a desktop system for gaming.

You cannot turn the notebook you have into anything remotely capable of gaming at anything but the most casual level.

thanks, but what are the consequences if I ever decide to replace the entire system board for something much faster?

You're still limited to at best a Radeon M430 GPU (the only discrete GPU offered for this model), which is decidedly low end -- and even with a faster i7 CPU, it'll never be a gaming system any more than a turbocharger will turn a Hyundai Accent into a performance car.

thanks, I might just have to build my own computer, I think it's going to be a much better decision than investing on this device. thanks anyway.