IBM NeXtScale System Planning And Implementation Manual page 109

Figure 4-13 shows the PCIe Native Expansion Tray attached to an nx360 M4
(shown with the top cover removed). The figure shows two NVIDIA GPUs
installed.
Figure 4-13 IBM NeXtScale PCIe Native Expansion Tray attached to an nx360 M4
compute node (with two NVIDIA GPUs installed)
Ordering information is listed in Table 4-20.
Table 4-20 Ordering information
Part number Feature code
00Y8393 A4MB
When the PCIe Native Expansion Tray is used, it is connected to the compute
node via two riser cards, each providing a PCIe x16 connector to the GPUs or
coprocessors installed in the tray. Riser cards are as follows:
2-slot PCIe 3.0 x24 riser card installed in the front riser slot (riser slot 1 - see
Figure 3). This riser card replaces the standard 1-slot riser used to connect
standard PCIe cards internal to the compute node. The 2-slot riser card offers
these connection:
– PCIe 3.0 x8 slot for the slot internal to the compute node
– PCIe 3.0 x16 slots for the front adapter in the PCIe Native Expansion Tray
1-slot PCIe 3.0 x16 riser card installed in the rear riser slot (riser slot 2 - see
Figure 4-3 on page 62). This riser is used to connect the rear adapter in the
PCIe Native Expansion Tray.
Description
IBM NeXtScale PCIe Native Expansion Tray
Chapter 4. IBM NeXtScale nx360 M4 compute node
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