As part of integration testing for our product, we received a client machine with a Supermicro X10DRi motherboard in it, with 2 Xeon E5-2620 v4 CPUs and a Quadro P5000. That motherboard is using the Intel C612 chipset.
While doing basic research for the integration, I noticed that the motherboard specs say it has 3X PCIe 3.0 x16 and 3X PCIe 3.0 x8 slots. However, the C612 chipset apparently only supports PCIe 2.0, and only up to x4 connections.
While the machine does work, I would like to know if we are taking full advantage of the Quadro. I currently believe that we are limited by the maximum speed of the chipset, as it controls the speed of communication between the CPUs and the GPU.
- Am I correct in that belief?
- Is there something I am missing/unaware of/incorrect about relating to the communication between the CPU and GPU, whereby the chipset is not a limiting factor?
- Is there a way to test the speed of the connection to the GPU?