Hi and welcome.
Well, unfortunately I can't access the link, looks like it's invalid. What components have you chosen?
Sorry about that. I forgot I edited and changed some stuff and the url changed. I updated the top post and added a new link so it should be able to bring you to the right place now.
The reason I changed it was because I switched the Asus CUII OC GTX 780 to a Asus CUII OC GTX 760 for two reasons being that the 780 was 11.3" when I heard that the maximum length that could fit in the Hadron was 10.5" and it didn't seem promising that the 500w PSU could support all of the build, at least for a long period of time that is ( ~5 years or so) because the estimated wattage for the 780 and the rest of the build was around ~445 or so.
The reason I switched to the 760 was because it was much smaller, it's still a really good video card and can play on very high/ultra graphics on a 1080p resolution ( which I'm going to play on) and it doesn't use as much wattage. Altogether the estimated wattage with the 760 is ~332.
Another reason I did this was because I think this card will last for around 3-4 years maybe until a next upgrade and that will be plenty enough time until Nvidia be using Maxwell which we all have seen implemented in the GTX 750 and 750 ti that they don't use much wattage at all and I'm hoping that will go the same for their Higher end next gen cards so I can play safely with a 500w PSU.