GPU SXM2 Board

CS-Storm 500NX 1U server interconnect block diagram and components.

The CS-Storm 500NX 1U SXM board uses the NVIDIA Cube Mesh NVLink architecture. A direct connection between all GPUs is provided through single NVLink connections (peak of 20 GB/s for SXM2 P100, 25 GB/s for SXM2 V100). The GPU SXM2 board has four PCIe 3.0 x16 PCIe slots to support low-profile expansion cards in the front of the chassis.

A direct connection from the GPUs to an external high-speed interface is provided through a PCIe switch to an x16 slot in the front of the GPU tray. Each PCIe switch is root to two GPU modules and one PCIe3.0 x16 slot on the GPU SXM2 board.

A block diagram showing the NVLink and PCIe interconnections, and a figure showing major SXM2 board components are shown below.