Just built this PC last week. I had a GTX 1060 in it for the first few days but then decided to get a GTX 1070. Ever since I put the 1070 in, I randomly cant get the PC to post. Ill have to hard shut it off by holding the power button wait a little bit then keep trying till it boots and then all is well. Not sure what this is all about. Bios is version F7 and there isnt anything newer. Wondering if maybe proper GTX 1070 support hasnt made it to this motherboard yet. I also have a 850W corsair PSU that I salvaged from my last build and it was running a GTX 590 for 4 years with no issue.