Server motherboard recomendation
Server motherboard recomendation
You won't find any motherboard with 15 slots because the available space is too limited. The longest trace length—like from socket to GPU chip—is about 20 inches. You can use "server-grade" PCIe switches or boards that connect via PCIe x8 or x16 slots, offering several PCIe x16 ports. Examples include Cyclone Microsystems's PCI Express expansion backplanes and adapters, as well as the PEX 8632 RDK PCI Express Switch GEN 2 with an x16 cable adapter, tested on eBay.
Explore several mining motherboards. A few makers offered 15 single connection slots.
However, the mining boards include an 8x setting, which could create a bottleneck when using a 16x
Confirming your request: 15 times 16 times PCIe lanes on a dual SP3 board, totaling 240 PCIe lanes.