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Technical rules for PCIe slots

PCIe adapters must be installed in a specific order based on the CPU configuration that you implement on your server.

Installation priorityComponentPCIe slot priorities
1Double-wide GPUOne processor installed: 1, 3
Two processor installed: 1, 3, 7, 5
2RetimerOne processor installed: 1, 3
Two processor installed: 7, 5, 1, 3
3Single-wide GPUOne processor installed: 1, 3, 2
Two processor installed: 1, 3, 7, 5, 2, 4, 6, 8
4ThinkSystem RAID 940-32i 8GB Flash PCIe Gen4 12Gb AdapterOne processor installed: 9
Two processor installed: 9, 5, 6, 7, 8
5Internal 16i RAID adapterOne processor installed: 9, 1, 2, 3
Two processor installed: 9, 1, 2, 3, 4, 5, 6, 7, 8
6ThinkSystem RAID 930-24i 4GB Flash PCIe AdapterOne processor installed: 9
Two processor installed: 9, 5, 6, 7, 8
7Internal 8i RAID adapterOne processor installed: 9, 1, 2, 3
Two processor installed: 9, 1, 2, 3, 4, 5, 6, 7, 8
8Internal HBA adapterOne processor installed: 1, 2, 3
Two processor installed: 1, 2, 3, 4
9Fiber channel ethernet adapter (x16 Gen4)One processor installed: 1, 3
Two processor installed: 1, 3, 7, 5
10RJ45 ethernet network adapterOne processor installed: 9, 2, 3
Two processor installed: 9, 2, 3, 4, 6, 7, 8
11External RAID/HBA adapterOne processor installed: 9, 1, 2, 3
Two processor installed: 9, 1, 2, 3, 4, 5, 6, 7, 8
12Fiber channel ethernet adapter (x4/x8)One processor installed: 9, 1, 2, 3
Two processor installed: 9, 1, 2, 3, 4, 5, 6, 7, 8
Note
  • ThinkSystem RAID 940-32i 8GB Flash PCIe Gen4 12Gb Adapter can only be installed in slot 9 in one CPU configurations, and installed in slot 9, 5, 6, 7, or 8 in two CPU configurations.

  • ThinkSystem RAID 540-8i PCIe Gen4 12Gb Adapter cannot be mixed with other RAID/HBA.

  • GPU RTX A6000 can only be installed in PCIe slot 1, 3, 5, and 7. PCIe slot 2, 4, 6, and 8 will be left unoccupied.

  • Mixing GPUs in the same zone are not supported:

    • When a GPU is installed in PCIe slot 1, 2, 3, or 4; only the same GPU can be installed in PCIe slot 1, 2, 3, or 4.

    • When a GPU is installed in PCIe slot 5, 6, 7, or 8; only the same GPU can be installed in PCIe slot 5, 6, 7, or 8.

  • When a RTX A6000/RTX 4000 GPU is installed in PCIe slot 1, 2, 3, or 4; RAID/HBA adapters cannot be installed in PCIe slot 1, 2, 3, or 4.

  • When a RTX A6000/RTX 4000 GPU is installed in PCIe slot 5, 6, 7, or 8; RAID/HBA adapters cannot be installed in PCIe slot 5, 6, 7, or 8.