I have seen some bitcoin mining frames with 8 GPU capacity and they are able to install all those GPUs to fairly cheap motherboards for CPUs with 16 PCIe lanes. They use PCIe 1X to PCIe 16X adapters to install all those GPUs. According to what I learned from forums so far, I need a CPU with at least 28 or 40 PCIe lanes and at least a X99 chipset motherboard to install 3 or 4 GPUs respectevely for rendring effectively with GPUs. My question is, are those bitcoin mining rigs good enough for rendering? I guess not becasue those CPUs and motherboards don’t have enough PCIe lanes to keep good enough GPU performance, but I can be wrong.
Have anyone tried those rigs for rendering with Blender and post their experience? Thanks in advance.