Hey!
I figured i would come here and tell a quick story. From my early findings, leaving a PS4 controller plugged in will mess windows' boot sequence and will freeze at the windows logo. When it happens, Q-Code "B1" is shown on the motherboard. Upon disconnecting the PS4 controller, everything returns to normal. I thought it could be usefull if someone encounters this issue. I haven't tried messing with the "xHCI" settings in the bios neither have i tried to use another usb port. I've used a Front 3.0usb port and the bug happens. I will not invest more time into this since fixing this only requires you to disconnect your PS4 controller before booting and reconnect it when you're in windows.
Max
Cpu : Intel 5930K@4.25ghz@1.2v / Cache @4.25ghz@1.20v
Cpu Cooler : Corsair H100i
Case : Corsair 780T
Memory : G.Skills 32GB DDR4-3200mhz CAS 15-15-15-35-1T@1.370v
Motherboard : Asus Rampage V Extreme (BIOS 3504)
M2 : Samsung 950 Pro NVME 512gb (Gaming)
M2 : SSD1 : OCZ RD400A 128gb (windows)
SSD1 : Crucial MX100 512gb (data)
Gfx : EVGA Titan X w/ 980 Hybrid Cooling AiO Liquid Cooler
PSU : Antec HCP-1000W
Monitor : Asus RoG Swift