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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
1
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