Lenovo Flex System x240 M5 User's Guide download pdf (Page 24)

Lenovo Flex System x240 M5 24

I/O expansion options

The x240 M5 has two I/O expansion connectors for attaching I/O adapter cards. There is a third

expansion connector that is designed to connect an expansion node, such as the PCIe Expansion Node.

The I/O expansion connectors are a high-density, 216-pin PCIe connector. Installing I/O adapter cards

allows the server to connect with switch modules in the Flex System Enterprise Chassis. Each slot has a

PCI Express 3.0 x16 host interface and both slots support the same form-factor adapters.

The following figure shows the location of the I/O expansion connectors.

Figure 7. Location of the I/O adapter slots in the Flex System x240 M5 Compute Node

All I/O adapters are the same shape and can be used in any available slot.. 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 14. Adapter to I/O bay correspondence

I/O adapter slot in the server Port on the adapter Corresponding I/O module bay in the chassis

Port 1 Module bay 1

Port 2 Module bay 2

Port 3 (for 4-port cards) Module bay 1

Slot 1

Port 4 (for 4-port cards) Module bay 2

Port 1 Module bay 3

Port 2 Module bay 4

Port 3 (for 4-port cards) Module bay 3

Slot 2

Port 4 (for 4-port cards) Module bay 4

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 39 40

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Lenovo Flex System x240 M5 User's Guide Page 24