No more than two card at the time on h470 asrock phantom gaming 4

AMD Cards
1

I bought another motherboard in order to separate AMD and Nvidia but on the second mobo I can only run 2 GPUs at the time and if I plug one of the two on the first 16x slot it won’t boot at all and it will do the same if I plug a 3rd 4th or 5th card the new rig consists of :
mobo h470 asrock phantom gaming 4
CPU g5900
ram 8Gb

2

Do you have booting problems on the Nvidia, or the AMD rig?

You use the same mobo for both rigs, if yes, did you set up the bios correctly?

3

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