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Flex System PCIe Expansion Node

The x240 M5 supports the attachment of the Flex System PCIe Expansion Node. By using the Flex System

PCIe Expansion Node, more PCI Express cards can be attached, such as High IOPS SSD adapters, fabric

mezzanine cards, and next-generation graphics processing units (GPU) to supported Flex System compute

nodes. This capability is ideal for many applications that require high performance I/O, special

telecommunications network interfaces, or hardware acceleration that uses a PCI Express card. The PCIe

Expansion Node supports up to four PCIe 2.0 adapters and two more Flex System expansion adapters.

The PCIe Expansion Node is attached to a Flex System compute node, as shown in the following figure.

Figure 10. PCIe Expansion Node attached to the x240 M5

The ordering information for the PCIe Expansion Node is shown in the following table.

Table 18. Ordering part number and feature code

Part number

Feature code

81Y8983

A1BV

The PCIe Expansion Node has the following features:

Support for up to four standard PCIe 2.0 adapters:

Two PCIe 2.0 x16 slots that support full-length, full-height adapters

Two PCIe 2.0 x8 slots that support half-length, low-profile adapters

Support for PCIe 3.0 adapters by operating them in PCIe 2.0 mode

Support for one full-length, full-height double-wide adapter (that uses the space of the two full-length,

full-height adapter slots)

Support for PCIe cards with higher power requirements; a single adapter card (up to 225W) or to two

adapters (up to 150W each)

Two Flex System I/O expansion connectors to further expand the I/O capability of the attached compute

node

Note: The use of the PCIe Expansion Node requires that the x240 M5 Compute Node has both processors

installed.

For more information, see the Lenovo Press Product Guide:

Network adapters

Lenovo Flex System x240 M5 (E5-2600 v4)

Description

Flex System PCIe Expansion Node

http://lenovopress.com/tips0906

Maximum supported