Lenovo ThinkSystem SN550 Product Manual page 29

must be removed first to use that slot for an optional I/O adapter.
The following figure shows the location of the I/O expansion connectors.
Figure 6. Location of the I/O adapter slots in the ThinkSystem SN550 server
A compatible switch or pass-through module must be installed in the corresponding I/O bays in the
chassis, as indicated in the following table. Installing two switches means that all ports of the adapter are
enabled, which improves performance and network availability.
Table 25. Adapter to I/O bay correspondence
I/O adapter slot in the server
Slot 1
Slot 2
The following figure shows the location of the I/O module bays in the Flex System Enterprise Chassis.
Lenovo ThinkSystem SN550 Server
Port on the adapter
Port 1
Port 2
Port 3 (for 4-port cards)
Port 4 (for 4-port cards)
Port 1
Port 2
Port 3 (for 4-port cards)
Port 4 (for 4-port cards)
Corresponding I/O module bay in the chassis
Module bay 1
Module bay 2
Module bay 1
Module bay 2
Module bay 3
Module bay 4
Module bay 3
Module bay 4
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