I tried many things, many suggestions, I format my windows 10 and install ubuntu but I had the same problem.
I Resolved this problem like this, I installed the windows 10 x64 and made the step by step
https://www.gigabyte.com/MicroSite/462/mining.html
Is very important to upgrade the bios, my bios actually is F25, then I update the bios was possible put CSM Support in disabled.