IBM 49Y4379 peripheral controller

These wrap cards complete the full QPI mesh to allow all four processors to be connected to each other. The QPI Wrap Cards are not needed in two-processor configurations and not needed when a MAX5 is connected. The QPI Wrap Cards are only for single-node configurations with three or four processors installed. They are not necessary for any of the following items: Single-node configurations with two processors; Configurations with MAX5 memory expansion units and Two-node configurations.