Product guide

IBM NeXtScale nx360 M5 23
IBM NeXtScale PCIe Native Expansion Tray
The IBM NeXtScale PCIe Native Expansion Tray is a half-wide 1U expansion tray that attaches to the
nx360 M5 to provide two full-height full-length double-width PCIe 3.0 x16 slots. The tray is designed to
support two GPU adapters or coprocessors.
Note: The PCIe Native Expansion Tray and the Storage Native Expansion Tray cannot be connected to
the same compute node.
The following figure shows the PCIe Native Expansion Tray attached to an nx360 M5 (shown with the top
cover removed). The figure shows two NVIDIA GPUs installed.
Figure 10. IBM NeXtScale PCIe Native Expansion Tray attached to an nx360 M5 compute node
Ordering information is listed in the following table.
Table 17. Ordering information
Part number Feature code Description
00Y8393 A4MB IBM NeXtScale PCIe Native Expansion Tray
When the PCIe Native Expansion Tray is used, it is connected to the compute node through two riser
cards, each providing a PCIe x16 connector to the GPUs or coprocessors that are installed in the tray.
A 2-slot PCIe 3.0 x24 riser card is installed in the front riser slot (riser slot 1; see Figure 3). This riser

card replaces the standard 1-slot riser that is used to connect standard PCIe cards that are internal to
the compute node. The 2-slot riser card offers these connections:
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

A 1-slot PCIe 3.0 x16 riser card is installed in the rear riser slot (riser slot 2; see Figure 3). This riser

is used to connect the rear adapter in the PCIe Native Expansion Tray.