I have this problem

For mining use, I have a previous MSI motherboard where I put 6 gpu ( 1 pc Sapphire RX 580 8gb blue edition, 2 XFX RX 580 4gb OC GTS xxx Edition, and 3 ASUS RX 570 4 gb OC strix edition)

Regarding my previous configuration I had no problem with Windows 10 pro but I wanted to increase number of GPU and I decided to buy this H110 pro motherboard that supported up to 13 GPU.

The problem is the now, I lost more than 4 days to try to start.

The problem is that system windows 10 pro or also HiveOS that I used for a test give me the same result

It is not possible to see all 6 gpu in same time, I started also with one; the sapphire, after this mount the first XFX and restart OS, now It can see two gpu, ok I proceed to mount second XFX, and I can see the third.

No problem when I try to see in devide management, so I try to restart, When OS is loaded, I can see sometimes 2 and in others OS restart 1 GPU.

How Is it possible, I confirm that CPU, RAM, PSU corsair 80 plus 1000W, cables are the same and I try to reput all in my previous MSI motherboard and all work and also mining is always stable.

I thought also that could be a problem with Vbios, for this reason I reput original bios without any time strap for OC modding but nothing, The system give me always the same problem.

i checked also power connection applying molex and sata cable for more stability, I used also to put another PSU corsair 750W  but nothing, there is the same problem.

When I try to start only one GPU, there is no problem it start and work very good with a very good hashrate but the problem is the restart.

I also tried to change riser board and their cable, but nothing.

Can you help me?

Thank you very much for your support