I’ve had the same issue with all my peripherals plugged in(3 different USB hubs, ethernet adapter, fan, hdmi switch, …)
When I only have HDMI and USB-C power plugged in it boots normally. And then I plug in all my adapters and hubs.
I think it’s my HDMI hub that creates the problem, but not sure.
That has a USB hub with 4 ports with again another USB hub plugged in with all my mouse and keyboards. And also an USB audio adapter.
Another possible reason could be my 5GbE adapter.
I should try by plugging in device by device and every time boot until it’s not booting anymore.
My PSU is ok. But I think the board has issue’s with so many usb devices connected at boot.
It keeps rebooting. No uart so indeed hard to diagnose. I should test all my devices separate, but there are a lot.
Once it’s booted it is stable and works.
I just made my review video about it where I show how I use it and what I all plug in.
Here the video. I’ll release it tomorrow. Might change a few things before releasing.