Upgrade motherboard to one with graphics card?

Hello, I have a Dell Inspiron 15r (N5110) with integrated graphics.

While I know there is no way to get dedicated graphics other than replacing the motherboard I'm here.

1st question: Is this even possible with my model?

2nd: Do I have to use a certain model motherboard depending on my current model number?

Here are eBay listings I have found:

Motherboard: http://www.ebay.com/itm/Dell-Inspiron-15R-N5110-Motherboard-with-Discrete-Nvidia-Video-Card-J2WW8-0J2WW8-/261361408301

Heatsink: http://www.ebay.com/itm/Original-DELL-Inspiron-15R-N5110-Cooling-CPU-Fan-Heatsink-XCT08-0J1VPC-J1VPC-/181197906600

thanks in advance.