mcgd4life :
I'm a bit new to gaming PC's and such. It has a GTX 1070. The outer case does not have a DVI Port, But technically i could connect it to the GTX 1070 right?
If it has a GTX 1070. You want to connect to the GTX 1070. The motherboard ports are usually disabled when a discrete graphics card is installed. They wouldn't benefit from the GTX 1070 if they were turned on.
I'm surprised the GTX 1070 does not have DVI. Most do. If it doesn't have the DVI port. Then you need to use the DisplayPort to Dual Link DVI adapter. Just remember that most of those adapters have reliability issues. So, your mileage may vary.
You'd be better off choosing a different computer with DVI. Since the adapter costs $100. If the alternate computer costs a $100 more than the one you want. So what. In the end you'd pay the same for a more reliable solution.
The other option. Sell your monitor. Since you know the adapter costs around $100. If you instead add that $100 to the money you get for your monitor. You could instead buy a 144hz 1920x1080 monitor with a proper DisplayPort. Perhaps even G-Sync or 1440p.