Can you specify a bit, what gpus and how do you wire them "together"? Nvlink?

A couple 5060s and a couple 3060s. They are wired via PCI risers to an older mono with an amd cpu. (I wanted to avoid long 3-fan cards.) It looks like a mining rig, but with thicker pci risers. Many llm tools easily leverage multiple GPUs. Sucks 800w at full load, idles below 50w.