Z390 PG9 Can't install Windows 10

Hello,

I have just completed a new build. When I insert my windows 10 USB I am able to select the 64bit install option. The machine then proceeds to the load files screen. After which it returns to the Asrock logo and spins for about 3 seconds. The screen goes black, as if the monitor is refreshing, then the machine returns to the Asrock UEFI page. If I don't hit F2 or F11 it returns to the Windows OS selection page for me to choose the 64bit or the 32bit OS. This results in an endless loop.

I am able to access the UEFI menu. I am able to see my proc, my drive, and my memory. The system never shuts down when I'm in the UEFI.

System Specs:

Mobo: z390 Phantom Gaming 9
Proc: I9-9900K
Radiator: Cooler Master ML360r
RAM: Corsair Vengeance RGB 3200k 64GB
Drive: Samsung 970 Pro 1TB nvme
Video Card: Asus ROG Strix RTX 2070
Fans: 6 Deep Cool CF120s plugged into the mobo fan pins for speed and Cooler Master controller for RGB
Store bought Windows 10 USB stick


Here are things I've done so far in no particular order. I'e tried these things using the UEFI USB option and the Legacy USB option at different times.

1) Created my own memory sticks using rufus and windows creation tool. neither worked
2) Created my own USB by mounting ISO and copying files from ISO to USB
3) Removed everything from the Mobo except for 1 stick of RAM, nvme drive, and CPU cooler
4) Disconnected all fans from the board, and disconnected the AIO RGB controller
5) Asrock support suggested using slot A2 for RAM. Did not work. I have tried all 4 slots using 1 stick of RAM, none have worked.
6) I've tried by only using onboard graphics, and using the video card (adjusting UEFI settings) with everything else stripped out of the case except for items listed in 3.
7) I've used each of the I/O USB ports.
8) I've used the USB 2.0 port on the board
9) I've cleared CMOS between each troubleshooting step.
10) Tried all 3 M.2 slots
11) Removed the NVME drive and tried on a sata SSD
12) I have tried multiple UEFI settings including USB settings UEFI and Legacy mode, UEFI only. I disabled CSM. I set StorageOpRom to UEFI only.
13) The behavior never changes except for when I disable CSM. After the OS selection screen the monitor goes black, but is not turned off. Waited for a couple of hours and nothing happened.
14) I was able to install Ubuntu 16.04 with no issues.

I'm thinking their may be some video setting in the UEFI causing the issue since the monitor blanks out before the system flashes back to the UEFI screen. The system never turns off, or shuts down, but it acts like it was just powered on again for the first time. Could it potentially be a driver issue?

Any help or suggestions would be greatly appreciated. I've been working on this since May 10. Asrock support only sent me irrelevant links from tom's hardware on how to build a PC, and has been unable to assist with my issue.

Have you had any luck with installing Win 10 ?

Thanks for update and glad you figured it out.