Dell PowerEdge M520, Owner'S Manual

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The switches map the mezzanine cards to the PCIe slots on the enclosure's system board. There are five PCIe low
profile slots on the system board and three full-height, full-length PCIe slots on the PCIe riser. All the PCIe slots can be
mapped to the PCIe mezzanine cards on the server modules to provide I/O expansion for the system:
PCIe mezzanine Fabric B and Fabric C cards on each server module are mapped to the PCIe switches which further map
to the PCIe slots and the Shared PERC slots on the enclosure's system board.
NOTE: For information on the specifications of the supported PCIe cards, see Technical Specifications .
Figure 23. Mapping PCIe Expansion Slots — Half-Height Server Modules
Figure 24. Mapping PCIe Expansion Slots — Full-Height Server Modules
Managing PCIe Slots
You can do the following using the CMC web interface:
• View the status of both individual and all PCIe slots in the chassis.
• Assign PCIe slots to server modules.
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