For most of us, if you change the motherboard and keep the ram, cpu and such there is no awesome speed increase.
ALSO you get to buy a new copy of Windows since most of us use the OEM version that is locked to the motherboard.
MAYBE the solution is to install a good video card. But your link is not clickable so I can't offer any suggestions today. My advice is to upgrade the video card.
Im trying to upgrade my gateway to play awesome games with no lag and plenty of power. My friend told me that a new motherboard is a plus for gaming and a powerful video card.I don't want to just buy a motherboard that doesn't work for my computer and i don't want to build a computer from scratch.I need to know what mother board is great for gaming and works for my computer. I already know what kind of video card im going to get a Radeon HD 5790.If any body can help with this. My computer specs http://support.gateway.com/s/PC/DX/DX4200/DX4200sp2.shtml