Hi,
I just built my computer today and after a lot of troubleshooting, I was able to get both Windows 7 and Yosemite installed on my computer (dual boot).
Here are my parts:
CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor
Motherboard: Gigabyte GA-Z97X-SLI ATX LGA1150 Motherboard
Memory...