Ive got 12 rigs with 13 gpus each on linux. Nothing needed changing on the linux just the right mobo…H110+
Nothing to do with the mobo, you can run 13 cards on every mobo with a splitter. In the past, the solution was to mix the gpu´s - AMD and Nvidia.
Hope to see some improvements for more GPU´s than 13 under Linux.
@david739
you use a normal Linux Distro? This will not work with more than 7 GPU from the same brand, you must mix it with 6 nvidia and than it will work. This was the only way in the past for this old linux kernels
EDIT:
here is an part of the asrock advice:
Materials you need
1. ASRock H110 Pro BTC+ motherboard
2. Total power supply up to 2400W
3. Adapter for dual power supply (Optional)
4. PCIe riser kit*13
5. 13*AMD/8*AMD + 5*NVIDIA graphic cards.6. Dedicated frame for 13 VGA mining
7. SSD boot drive
8. Minimum 4GB RAM (8GB is recommended)