Figure 1 shows the rear view of the system with the location codes for the PCIe adapter slots.Table 4 lists the PCIe adapter slot locations and details for the 5148-21L, 5148-22L, 8247-21L, 8247-22L,8284-21A, or 8284-22A system.Table 4. PCIe slot locations and descriptions for the 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or8284-22A systemSlot LocationcodeDescription PHB AdaptersizeSlot capabilities Slot availability inCAPI SR-IOV Dynamicdirectmemoryaccess(DMA)windowI/O adapterenlargedcapacityassignorder58247-21L,8284-21A,8284-22A,or 5148-21L1 processor8247-22L,8284-22A,or 5148-22L2processorsSlot 1 P1-C21, 6 PCIe3, x8 ProcessorModule 2,Chip-1,PHB1Low-profile No Yes Yes 5 No YesSlot 2 P1-C31 PCIe3, x16 ProcessorModule 2,Chip-1,PHB0Low-profile Yes Yes Yes 9 No YesSlot 3 P1-C41, 6 PCIe3, x8 ProcessorModule 2,Chip-0,PHB1N/A N/A N/A N/A N/A No NoSlot 4 P1-C51 PCIe3, x16 ProcessorModule 2,Chip-0,PHB0Low-profile Yes Yes Yes 11 No YesSlot 5 P1-C61 PCIe3, x16 ProcessorModule 1,Chip-1,PHB0Low-profile Yes Yes Yes Default Yes YesSlot 6 P1-C71 PCIe3, x16 ProcessorModule 1,Chip-0,PHB0Low-profile Yes Yes Yes Default Yes YesSlot 7 P1-C82 PCIe3, x8 PCIe3Switch 2,S2P16N/A N/A N/A N/A N/A No NoSlot 8 P1-C92, 3 PCIe3, x8 PCIe3Switch 2,S2P17Low-profile No No Yes 6, 84 Yes YesFigure 1. Rear view of a 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or 8284-22A system with PCIe slotslocation codesPCIe adapter placement 3