The midplane connections between the adapters that are installed in the compute nodes to the I/O modulebays in the chassis are listed in the following table. Half-wide compute nodes support up to two adapters, andfull-wide compute nodes support up to four adapters.Table 6. Adapter to I/O bay correspondenceI/O adapter slotin the compute nodePort on the adapter Corresponding I/O bay in the chassisBay 1 Bay 2 Bay 3 Bay 4Slot 1 Port 1 YesPort 2 YesSlot 2 Port 1 YesPort 2 YesSlot 3(full-wide compute nodes only)Port 1 YesPort 2 YesSlot 4(full-wide compute nodes only)Port 1 YesPort 2 YesLenovo Flex System SI4091 10Gb System Interconnect Module 10