Expansion cards and expansion card riserAn expansion card in the computer is an add-on card that can be inserted into an expansion slot on thecomputer system board or riser card to add enhanced functionality to the system through the expansionbus.NOTE: A System Event Log (SEL) event is logged if an expansion card riser is unsupported ormissing. It does not prevent your system from turning on and no BIOS POST message or F1/F2pause is displayed.Expansion card installation guidelinesDepending on your system configuration, the following PCI Express (PCIe) generation 3 expansion cardsare supported:Table 40. Supported expansion cardsPCIe slot Riser Processorconnection Height Length Linkwidth Slot width1 1 Processor 2 Low Profile Half Length x8 x162 1 Processor 2 Low Profile Half Length x8 x163 1 Processor 2 Low Profile Half Length x8 x164 2 Processor 2 Full Height Full Length x16 x165 2 Processor 1 Full Height Full Length x8 x166 3 (alternate) Processor 1 Full Height Full Length x16 x16NOTE: To use PCIe slots 1 through 4 on the risers 1 and 2, both the processors must be installed.NOTE: The expansion card slots are not hot-swappable.The following table provides guidelines for installing expansion cards to ensure proper cooling andmechanical fit. The expansion cards with the highest priority should be installed first using the slot priorityindicated. All the other expansion cards should be installed in the card priority and slot priority order.Table 41. Expansion card installation orderCard priority Card type Slot priority Max allowed1 PCIe Bridge 4 12 RAID H730P (low profile) 3, 2 13 RAID H830 6, 4, 5 2RAID H830 (low profile) 3, 2 24100G Intel Omni-Path Architecture(OPA) Host Channel Adapters (HCA)4, 6 214 Gb InfiniBand, Fourteen Data Rate(FDR) HCA3, 2, 1 340 Gb NICs (full height) 4, 6, 5 3128
