Show me how to Crossfire, Please!!!

[sunspotdragon]

Hello All,

Thanks for taking the time to help. I have a custom built desktop, for which I list the parts below. I am looking to add a second GPU and enable Crossfire on them. This will be my first time doing this, and would like to make sure my PC doesn't explode. Any advice will be greatly appreciated. My main goal is to make sure my hardware can support a Crossfire setup.

Thanks in advance to everyone for their advice. I will try to check this regularly, at least twice a day.

Desktop Build

CPU: i3-3220 --------------------> http://www.newegg.com/Product/Product.aspx?Item=N82E16819116775
MoBo: ASRock Z75 Pro3 -----> http://www.newegg.com/Product/Product.aspx?Item=N82E16813157304
RAM: 8GB DDR3 1866 --------> http://www.newegg.com/Product/Product.aspx?Item=N82E16820220706
GPU: Radeon HD7870--------> http://www.newegg.com/Product/Product.aspx?Item=N82E16814150606
PSU: 700W (It was a gift, don't have a link, I assume it is good quality based on who gave it to me.)

 

[gokitty199]

http://www.youtube.com/watch?v=upu1PpzN-wc

ive never done crossfire but watch a few videos to get a idea. seems pretty strait forward