I/O Expansion Options - IBM System x3690 X5 At-A-Glance Reference Manual

I/O expansion options

The server offers the up to five PCI Express 2.0 slots through two riser slots. The slots available depend
on the riser cards used. None of the slots are hot-swap. All slots are available regardless of whether one
or two processors are installed.
Riser slot 1 can accept one of the riser cards listed in Table 20, however, all standard models have the
2x8 riser card installed. This card provides the following PCIe 2.0 slots:
Slot 1, PCIe 2.0 x8 full height, half length slot

Slot 2, PCIe 2.0 x8 full height, half length slot

For CTO customers, the 2x8 riser can be replaced by another riser with one PCIe 2.0 x16 slot, either a
full-length slot or a 3/4-length slot, as listed in Table 20. This x16 slot is suitable for graphics processing
unit (GPU) adapters. Additional power for the adapter is available from an on-board power connector if
needed. Note that you cannot install the full-length riser (60Y0337) if the memory mezzanine is installed.
Table 16. Riser cards for riser slot 1
Part number Description
60Y0329 IBM System x3690 X5 PCI-Express (2x8) Riser Card (standard in all models)
60Y0331 IBM System x3690 X5 PCI-Express (1x16) Riser Card-3/4 length
60Y0337 IBM System x3690 X5 PCI-Express (1x16) Riser Card- full length*
* The 1x16 full-length riser cannot be used if the memory mezzanine is installed in the server.
Riser slot 2 has the 3x8 riser card installed in all standard models, except for model 7148-ARx. For model
ARx, it can be ordered using 60Y0366. See Table 21. This riser card has the following three slots:
Slot 3, PCIe 2.0 x8 low profile adapter.

Slot 4, PCIe 2.0 x4 low profile adapter (x8 mechanical).

Slot 5, PCIe 2.0 x8 low profile adapter. The Emulex 10Gb Ethernet adapter is installed in this slot if

the adapter is part of the server configuration.
Table 17. Riser cards for riser slot 2
Part number Description
60Y0366 IBM System x3690 X5 PCI-Express (3x8) Riser Card (standard in all models except 7148-ARx)
Note: Full-length adapters cannot be installed in any slots if the memory mezzanine is also installed.
Instead, adapters up to 3/4 length are supported.
IBM System x3690 X5 17