4x NVMe drives paired with a GPU that operates exclusively on the 8th generation (X299 Dark) model
4x NVMe drives paired with a GPU that operates exclusively on the 8th generation (X299 Dark) model
You're seeing high performance from your GPUs despite running 4x NVMes, which suggests the issue lies elsewhere. Check if your GPU drivers are properly configured for multi-GPU setups and ensure your CPU supports the required PCI-E lanes. Also, verify that your motherboard can handle the load and that any power delivery meets the demands of four GPUs.
Which board is this? Which slots are you connecting? What drives are these connected to?
Can't locate any schematic diagrams for the PCIe configuration on that board. You may need to reach out to EVGA for details. Even though the CPU provides sufficient lanes, it doesn't guarantee you can configure them in your preferred way. Each manufacturer arranges them differently.
What slot does your GPU occupy currently? Are you connecting M.2 drives via PCIe? If you're only using the top slot for your GPU, it should be X16 unless you're using the second X16 slot. Insert your M.2 drive into any of the remaining slots. The X8 shouldn't significantly impact performance, so you don't need to worry about it.
The GPU remains in its current slot. Relocating it to another 16x slot won't change its position.