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SPARC T5-4 Server Service Manual

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Updated: February 2019
 
 

PCIe Card Installation Order


Note -  Some PCIe cards are restricted to specific I/O slots to meet system cooling requirements. Other I/O cards provide better performance when installed in particular slots. For more information about PCIe slot restrictions for specific devices, see I/O Slot Restrictions in SPARC T5-4 Server Product Notes.

For optimal load balancing, install the PCIe cards in this order:

  • For single-processor configurations:

    Install PCIe cards in this PCIe slot order (single-processor configurations)
    3
    7
    11
    4
    8
    12
    5
    9
    13
    1
    6
    10
    14
    2

    Note -  In single-processor configurations, PCIe slots 15 and 16 are unavailable.
  • For dual-processor configurations:

    Install PCIe cards in this PCIe slot order (dual-processor configurations)
    5
    9
    7
    11
    3
    13
    4
    14
    6
    10
    8
    12
    1
    15
    2
    16

You may populate the PCIe slots in a different order to satisfy LDom or redundant failover considerations, but load balancing might not be as efficient. For example, you may distribute PCIe cards evenly across available root complexes.

If you are reviewing PCIe installation order after adding a second processor module, return to Server Upgrade Process.

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