Now none GPU are detected

. Only have the intel HD graphic
What version of Windows 10 are you running? SHould be 16299.201
Make sure you are on Gen 2 still in BIOS, does it show "basic display device" in Device manager?
I have the latest update of windows 10 now.
Yes I swap auto to Gen 2 in BIOS.
Now, it only detect if I directly put the GPU on the 16x PCIE on the mother board.
seems not detecting the risers.