Bizarre issue with fitting the GPU into the PCIe slot

PCIe cards you can install in your Mac Pro what pcie slot for gpu On current Intel single socket systems a PCIe switch is required to get 4 full X16 slots for GPU's The alternative possibility for 4 GPU's on what is mail slot Both the blue slots are PCIe x16 The difference is that the 2nd PCIe 16x is capable of wiring

whats a pcie slot Both the blue slots are PCIe x16 The difference is that the 2nd PCIe 16x is capable of wiring