Built my SO a computer for Christmas, and she's been having nothing but trouble getting it to work. We picked out the GA-Z170N-WiFi board and an i5-6600k along with a GTX 1060. I gave her a SSD I'd swapped out of my laptop and a copy of Windows 8.1 Pro I no longer use. Problem is, is it has a really hard time getting to the desktop. Initially I'd plopped the Samsung PM951 into the M.2 slot without wiping it and the computer started up just fine. We reformatted the drive and reinstalled Windows and it failed to find the drive. Flashing the F20 BIOS to the board temporarily solved the issue, but when she came back the next day it wouldn't leave the BIOS again. I've seen a handful of people running into RAM issues, and we're going to try swapping out her 2x8GB Crucial Ballistix Sport 2400 Kit for a set of 4x4GB Corsair Vengence LPX 3000 I had in a drawer. There's no other storage devices connected and her USB ports are only populated by a Razer Death Adder and Razer Blackwidow Chroma.