A little scared to add second card to mobo

[azmodan]

I recently just finished up my first build and was looking at putting in a second graphics card. While my mother board supports it; it seems like the card is too big and will knock some piece of equipment protruding off the board near the second pcie slot. link to MOBO below
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128542

 

[chromic]

it wont clip the heatsink, dont worry.