motherboard with 8 gpu slots: Review chi tiết máy chủ Dell PowerEdge R740. What are Small PCIe x1 Slots Used For? - CGDirector. The ASRock Fatal1ty H270 Performance Motherboard Review.
... ports: Video, serial, 2 x USB 3.0, dedicated iDRAC network port Video card: VGA Riser options with up to 8 PCIe Gen 3
slots, maximum of 4 x
16 slots. GPU ...
We recommend a minimum of 8 PCIe Gen 4 lanes per physical x16
slot on the motherboard for a four-GPU build. You may use fewer GPUs and populate the empty
PCIe slots with storage or network cards, depending on your requirements.
However, I have a cavoite in that my motherboard only has an 8 lane PCI 2.0 port available (I have a PCI 3.0 x16 port but it is occupied with a GPU).