NOTE: To use PCIe slots 4-8, both the processors must be installed.NOTE: The expansion-card slots are not hot-swappable.Expansion card slot priorityThe following table describes the installation order for installing expansion cards to ensure proper cooling and mechanical fit.The expansion cards with the highest priority must be installed first by using the slot priority indicated.NOTE: To use PCIe slots 4, 5, 6, 7, and 8, both the processors must be installed.NOTE: The expansion card slots are not hot-swappable.NOTE: To use PCIe cards with external I/O in slots 1, 2, 3, right external fan must not be installed, and to use PCIe cardswith external I/O in slots 5, 6, 7, 8, left external fan must not be installed.Table 19. Expansion card installation orderSystem Configuration CardPriority Card Type Slot Priority MaximumAllowed1 or 2 CPU, no GPU (noexternal fan)1 Dell PowerEdge Express Flash (PCIe SSD) Bridge 1, 3 22 RAID (H330), RAID (H730P) 0 1RAID (H740P) 0, 1 2RAID (H840), BOSS 4, 7, 1, 6, 8 53 Intel OPA NIC 1, 6 3Mellanox CX4 DP 100 Gb NICs* 8, 1, 6, 3 4Mellanox CX4 SP 100 Gb NIC* 8 14 Intel 40 Gb NIC 4, 7, 1, 6, 8, 3 6Mellanox DP 40 Gb NIC* 8, 4, 7, 1, 6 5Mellanox SP 25 Gb NIC 4, 7, 1, 6, 8 5Intel DP 25 Gb NIC, Qlogic DP 25 Gb NIC 4, 7, 1, 6 4Broadcom DP 25 Gb NIC 4, 7, 1, 6, 8, 3 65 FC32 HBAs, FC16 HBAs 4, 7, 1, 6, 8 56 Intel QP 10 Gb Base-T NIC* 8 17 Intel DP 10 Gb Base-T NIC, Intel 4x 10 Gb SFP+NIC, Broadcom DP 10 Gb 57416 NIC, Qlogic DP10 Gb SFP V2 NIC, Mellanox DP 10 Gb SFP+ NIC4, 7, 1, 6, 8 5Intel DP 10 Gb SFP+ NICs, Broadcom DP 10 Gb57412 NIC, Qlogic QLGX 10 Gb NICs4, 7, 1, 6, 8, 3 6Solarflare DP 10 Gb NICs*, Qlogic DP 10 Gb V1NIC*8, 4, 1, 7, 6 5Qlogic DP 10 Gb SFP V1 NIC, Qlogic DP 10 Gb V2NIC4, 7, 1, 6 48 FC8 HBAs 4, 7, 1, 6, 8, 5, 3,289 12G SAS HBA 4, 7, 1, 6, 8, 3 6HBA330 0, 1, 3 2Installing and removing system components 91